Home / 748,935.80-1,123,403.70-538,983.80

Finding the Fourth Proportional to 748,935.80, 1,123,403.70 and 538,983.80

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Solution

The fourth proportional to 748,935.80, 1,123,403.70 and 538,983.80 is: 808,475.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,935.80 : 1,123,403.70 = 538,983.80 : x
  2. Step 2: Convert to fraction form
    748,935.80/1,123,403.70 = 538,983.80/x
  3. Step 3: Cross multiply
    748,935.80x = 1,123,403.70 × 538,983.80
  4. Step 4: Simplify right side
    748,935.80x = 605,496,395,160.06
  5. Step 5: Solve for x
    x = 605,496,395,160.06/748,935.80
  6. Step 6: Final answer
    x = 808,475.70

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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.