Home / 539,623.50-743,988.15-442,469.40

Finding the Fourth Proportional to 539,623.50, 743,988.15 and 442,469.40

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Solution

The fourth proportional to 539,623.50, 743,988.15 and 442,469.40 is: 610,040.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,623.50 : 743,988.15 = 442,469.40 : x
  2. Step 2: Convert to fraction form
    539,623.50/743,988.15 = 442,469.40/x
  3. Step 3: Cross multiply
    539,623.50x = 743,988.15 × 442,469.40
  4. Step 4: Simplify right side
    539,623.50x = 329,191,990,337.61
  5. Step 5: Solve for x
    x = 329,191,990,337.61/539,623.50
  6. Step 6: Final answer
    x = 610,040.13

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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.