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Finding the Fourth Proportional to 519,948, 717,528.24 and 281,484

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Solution

The fourth proportional to 519,948, 717,528.24 and 281,484 is: 388,447.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,948 : 717,528.24 = 281,484 : x
  2. Step 2: Convert to fraction form
    519,948/717,528.24 = 281,484/x
  3. Step 3: Cross multiply
    519,948x = 717,528.24 × 281,484
  4. Step 4: Simplify right side
    519,948x = 201,972,719,108.16
  5. Step 5: Solve for x
    x = 201,972,719,108.16/519,948
  6. Step 6: Final answer
    x = 388,447.92

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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.