Home / 658,379.52-908,582.40-371,911.68

Finding the Fourth Proportional to 658,379.52, 908,582.40 and 371,911.68

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Solution

The fourth proportional to 658,379.52, 908,582.40 and 371,911.68 is: 513,248.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,379.52 : 908,582.40 = 371,911.68 : x
  2. Step 2: Convert to fraction form
    658,379.52/908,582.40 = 371,911.68/x
  3. Step 3: Cross multiply
    658,379.52x = 908,582.40 × 371,911.68
  4. Step 4: Simplify right side
    658,379.52x = 337,912,406,802.43
  5. Step 5: Solve for x
    x = 337,912,406,802.43/658,379.52
  6. Step 6: Final answer
    x = 513,248.66

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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.