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Finding the Fourth Proportional to 498,898.04, 688,479.14 and 269,455.31

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Solution

The fourth proportional to 498,898.04, 688,479.14 and 269,455.31 is: 371,848.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,898.04 : 688,479.14 = 269,455.31 : x
  2. Step 2: Convert to fraction form
    498,898.04/688,479.14 = 269,455.31/x
  3. Step 3: Cross multiply
    498,898.04x = 688,479.14 × 269,455.31
  4. Step 4: Simplify right side
    498,898.04x = 185,514,359,910.27
  5. Step 5: Solve for x
    x = 185,514,359,910.27/498,898.04
  6. Step 6: Final answer
    x = 371,848.25

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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.