Home / 970,155.28-1,338,727.44-540,426.20

Finding the Fourth Proportional to 970,155.28, 1,338,727.44 and 540,426.20

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Solution

The fourth proportional to 970,155.28, 1,338,727.44 and 540,426.20 is: 745,739.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,155.28 : 1,338,727.44 = 540,426.20 : x
  2. Step 2: Convert to fraction form
    970,155.28/1,338,727.44 = 540,426.20/x
  3. Step 3: Cross multiply
    970,155.28x = 1,338,727.44 × 540,426.20
  4. Step 4: Simplify right side
    970,155.28x = 723,483,383,234.93
  5. Step 5: Solve for x
    x = 723,483,383,234.93/970,155.28
  6. Step 6: Final answer
    x = 745,739.78

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Double scale
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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.