Home / 748,931.80-1,123,397.70-538,979.80

Finding the Fourth Proportional to 748,931.80, 1,123,397.70 and 538,979.80

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Solution

The fourth proportional to 748,931.80, 1,123,397.70 and 538,979.80 is: 808,469.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,931.80 : 1,123,397.70 = 538,979.80 : x
  2. Step 2: Convert to fraction form
    748,931.80/1,123,397.70 = 538,979.80/x
  3. Step 3: Cross multiply
    748,931.80x = 1,123,397.70 × 538,979.80
  4. Step 4: Simplify right side
    748,931.80x = 605,488,667,666.46
  5. Step 5: Solve for x
    x = 605,488,667,666.46/748,931.80
  6. Step 6: Final answer
    x = 808,469.70

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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.