Home / 1,100,567.10-1,650,850.65-390,666.90

Finding the Fourth Proportional to 1,100,567.10, 1,650,850.65 and 390,666.90

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Solution

The fourth proportional to 1,100,567.10, 1,650,850.65 and 390,666.90 is: 586,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,567.10 : 1,650,850.65 = 390,666.90 : x
  2. Step 2: Convert to fraction form
    1,100,567.10/1,650,850.65 = 390,666.90/x
  3. Step 3: Cross multiply
    1,100,567.10x = 1,650,850.65 × 390,666.90
  4. Step 4: Simplify right side
    1,100,567.10x = 644,932,705,798.49
  5. Step 5: Solve for x
    x = 644,932,705,798.49/1,100,567.10
  6. Step 6: Final answer
    x = 586,000.35

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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.