Home / 1,100,801.10-1,651,201.65-390,900.90

Finding the Fourth Proportional to 1,100,801.10, 1,651,201.65 and 390,900.90

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Solution

The fourth proportional to 1,100,801.10, 1,651,201.65 and 390,900.90 is: 586,351.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,801.10 : 1,651,201.65 = 390,900.90 : x
  2. Step 2: Convert to fraction form
    1,100,801.10/1,651,201.65 = 390,900.90/x
  3. Step 3: Cross multiply
    1,100,801.10x = 1,651,201.65 × 390,900.90
  4. Step 4: Simplify right side
    1,100,801.10x = 645,456,211,066.49
  5. Step 5: Solve for x
    x = 645,456,211,066.49/1,100,801.10
  6. Step 6: Final answer
    x = 586,351.35

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.