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Finding the Fourth Proportional to 681,526.68, 940,513.20 and 375,614.28

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Solution

The fourth proportional to 681,526.68, 940,513.20 and 375,614.28 is: 518,351.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,526.68 : 940,513.20 = 375,614.28 : x
  2. Step 2: Convert to fraction form
    681,526.68/940,513.20 = 375,614.28/x
  3. Step 3: Cross multiply
    681,526.68x = 940,513.20 × 375,614.28
  4. Step 4: Simplify right side
    681,526.68x = 353,270,188,448.50
  5. Step 5: Solve for x
    x = 353,270,188,448.50/681,526.68
  6. Step 6: Final answer
    x = 518,351.22

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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.