Home / 1,100,515.10-1,650,772.65-390,614.90

Finding the Fourth Proportional to 1,100,515.10, 1,650,772.65 and 390,614.90

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Solution

The fourth proportional to 1,100,515.10, 1,650,772.65 and 390,614.90 is: 585,922.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,515.10 : 1,650,772.65 = 390,614.90 : x
  2. Step 2: Convert to fraction form
    1,100,515.10/1,650,772.65 = 390,614.90/x
  3. Step 3: Cross multiply
    1,100,515.10x = 1,650,772.65 × 390,614.90
  4. Step 4: Simplify right side
    1,100,515.10x = 644,816,393,602.49
  5. Step 5: Solve for x
    x = 644,816,393,602.49/1,100,515.10
  6. Step 6: Final answer
    x = 585,922.35

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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.