Home / 970,118.68-1,338,805.20-540,399.10

Finding the Fourth Proportional to 970,118.68, 1,338,805.20 and 540,399.10

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Solution

The fourth proportional to 970,118.68, 1,338,805.20 and 540,399.10 is: 745,773.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,118.68 : 1,338,805.20 = 540,399.10 : x
  2. Step 2: Convert to fraction form
    970,118.68/1,338,805.20 = 540,399.10/x
  3. Step 3: Cross multiply
    970,118.68x = 1,338,805.20 × 540,399.10
  4. Step 4: Simplify right side
    970,118.68x = 723,489,125,155.32
  5. Step 5: Solve for x
    x = 723,489,125,155.32/970,118.68
  6. Step 6: Final answer
    x = 745,773.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.