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Finding the Fourth Proportional to 572,002.90, 858,004.35 and 439,551.70

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Solution

The fourth proportional to 572,002.90, 858,004.35 and 439,551.70 is: 659,327.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,002.90 : 858,004.35 = 439,551.70 : x
  2. Step 2: Convert to fraction form
    572,002.90/858,004.35 = 439,551.70/x
  3. Step 3: Cross multiply
    572,002.90x = 858,004.35 × 439,551.70
  4. Step 4: Simplify right side
    572,002.90x = 377,137,270,649.90
  5. Step 5: Solve for x
    x = 377,137,270,649.90/572,002.90
  6. Step 6: Final answer
    x = 659,327.55

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.