Home / 658,456.31-908,669.39-386,524.21

Finding the Fourth Proportional to 658,456.31, 908,669.39 and 386,524.21

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Solution

The fourth proportional to 658,456.31, 908,669.39 and 386,524.21 is: 533,403.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,456.31 : 908,669.39 = 386,524.21 : x
  2. Step 2: Convert to fraction form
    658,456.31/908,669.39 = 386,524.21/x
  3. Step 3: Cross multiply
    658,456.31x = 908,669.39 × 386,524.21
  4. Step 4: Simplify right side
    658,456.31x = 351,222,714,151.86
  5. Step 5: Solve for x
    x = 351,222,714,151.86/658,456.31
  6. Step 6: Final answer
    x = 533,403.22

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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.