Home / 524,921.45-724,391.78-307,171.98

Finding the Fourth Proportional to 524,921.45, 724,391.78 and 307,171.98

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Solution

The fourth proportional to 524,921.45, 724,391.78 and 307,171.98 is: 423,897.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,921.45 : 724,391.78 = 307,171.98 : x
  2. Step 2: Convert to fraction form
    524,921.45/724,391.78 = 307,171.98/x
  3. Step 3: Cross multiply
    524,921.45x = 724,391.78 × 307,171.98
  4. Step 4: Simplify right side
    524,921.45x = 222,512,855,822.47
  5. Step 5: Solve for x
    x = 222,512,855,822.47/524,921.45
  6. Step 6: Final answer
    x = 423,897.44

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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.