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Finding the Fourth Proportional to 514,997.92, 709,807.76 and 342,607.52

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Solution

The fourth proportional to 514,997.92, 709,807.76 and 342,607.52 is: 472,206.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,997.92 : 709,807.76 = 342,607.52 : x
  2. Step 2: Convert to fraction form
    514,997.92/709,807.76 = 342,607.52/x
  3. Step 3: Cross multiply
    514,997.92x = 709,807.76 × 342,607.52
  4. Step 4: Simplify right side
    514,997.92x = 243,185,476,330.36
  5. Step 5: Solve for x
    x = 243,185,476,330.36/514,997.92
  6. Step 6: Final answer
    x = 472,206.72

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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.