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Finding the Fourth Proportional to 497,479.98, 686,524.65 and 282,631.83

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Solution

The fourth proportional to 497,479.98, 686,524.65 and 282,631.83 is: 390,033.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,479.98 : 686,524.65 = 282,631.83 : x
  2. Step 2: Convert to fraction form
    497,479.98/686,524.65 = 282,631.83/x
  3. Step 3: Cross multiply
    497,479.98x = 686,524.65 × 282,631.83
  4. Step 4: Simplify right side
    497,479.98x = 194,033,718,396.97
  5. Step 5: Solve for x
    x = 194,033,718,396.97/497,479.98
  6. Step 6: Final answer
    x = 390,033.22

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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.