Home / 766,343.52-1,148,332.68-485,270.28

Finding the Fourth Proportional to 766,343.52, 1,148,332.68 and 485,270.28

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Solution

The fourth proportional to 766,343.52, 1,148,332.68 and 485,270.28 is: 727,156.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,343.52 : 1,148,332.68 = 485,270.28 : x
  2. Step 2: Convert to fraction form
    766,343.52/1,148,332.68 = 485,270.28/x
  3. Step 3: Cross multiply
    766,343.52x = 1,148,332.68 × 485,270.28
  4. Step 4: Simplify right side
    766,343.52x = 557,251,721,156.75
  5. Step 5: Solve for x
    x = 557,251,721,156.75/766,343.52
  6. Step 6: Final answer
    x = 727,156.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.