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Finding the Fourth Proportional to 472,472.76, 708,307.74 and 219,899.92

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Solution

The fourth proportional to 472,472.76, 708,307.74 and 219,899.92 is: 329,663.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,472.76 : 708,307.74 = 219,899.92 : x
  2. Step 2: Convert to fraction form
    472,472.76/708,307.74 = 219,899.92/x
  3. Step 3: Cross multiply
    472,472.76x = 708,307.74 × 219,899.92
  4. Step 4: Simplify right side
    472,472.76x = 155,756,815,361.38
  5. Step 5: Solve for x
    x = 155,756,815,361.38/472,472.76
  6. Step 6: Final answer
    x = 329,663.06

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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.