Home / 497,856.42-687,095.15-304,377.66

Finding the Fourth Proportional to 497,856.42, 687,095.15 and 304,377.66

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Solution

The fourth proportional to 497,856.42, 687,095.15 and 304,377.66 is: 420,073.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,856.42 : 687,095.15 = 304,377.66 : x
  2. Step 2: Convert to fraction form
    497,856.42/687,095.15 = 304,377.66/x
  3. Step 3: Cross multiply
    497,856.42x = 687,095.15 × 304,377.66
  4. Step 4: Simplify right side
    497,856.42x = 209,136,412,432.46
  5. Step 5: Solve for x
    x = 209,136,412,432.46/497,856.42
  6. Step 6: Final answer
    x = 420,073.75

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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.