Home / 970,141.52-1,338,708.47-540,412.43

Finding the Fourth Proportional to 970,141.52, 1,338,708.47 and 540,412.43

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Solution

The fourth proportional to 970,141.52, 1,338,708.47 and 540,412.43 is: 745,720.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,141.52 : 1,338,708.47 = 540,412.43 : x
  2. Step 2: Convert to fraction form
    970,141.52/1,338,708.47 = 540,412.43/x
  3. Step 3: Cross multiply
    970,141.52x = 1,338,708.47 × 540,412.43
  4. Step 4: Simplify right side
    970,141.52x = 723,454,687,938.68
  5. Step 5: Solve for x
    x = 723,454,687,938.68/970,141.52
  6. Step 6: Final answer
    x = 745,720.77

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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.