Home / 970,151.28-1,338,721.92-540,422.19

Finding the Fourth Proportional to 970,151.28, 1,338,721.92 and 540,422.19

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Solution

The fourth proportional to 970,151.28, 1,338,721.92 and 540,422.19 is: 745,734.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,151.28 : 1,338,721.92 = 540,422.19 : x
  2. Step 2: Convert to fraction form
    970,151.28/1,338,721.92 = 540,422.19/x
  3. Step 3: Cross multiply
    970,151.28x = 1,338,721.92 × 540,422.19
  4. Step 4: Simplify right side
    970,151.28x = 723,475,031,807.41
  5. Step 5: Solve for x
    x = 723,475,031,807.41/970,151.28
  6. Step 6: Final answer
    x = 745,734.24

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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.