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Finding the Fourth Proportional to 574,331.52, 861,448 and 349,633.64

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Solution

The fourth proportional to 574,331.52, 861,448 and 349,633.64 is: 524,420.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,331.52 : 861,448 = 349,633.64 : x
  2. Step 2: Convert to fraction form
    574,331.52/861,448 = 349,633.64/x
  3. Step 3: Cross multiply
    574,331.52x = 861,448 × 349,633.64
  4. Step 4: Simplify right side
    574,331.52x = 301,191,199,910.72
  5. Step 5: Solve for x
    x = 301,191,199,910.72/574,331.52
  6. Step 6: Final answer
    x = 524,420.46

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1.5x scale

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.