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Finding the Fourth Proportional to 478,229.48, 660,404.58 and 299,692.52

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Solution

The fourth proportional to 478,229.48, 660,404.58 and 299,692.52 is: 413,856.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,229.48 : 660,404.58 = 299,692.52 : x
  2. Step 2: Convert to fraction form
    478,229.48/660,404.58 = 299,692.52/x
  3. Step 3: Cross multiply
    478,229.48x = 660,404.58 × 299,692.52
  4. Step 4: Simplify right side
    478,229.48x = 197,918,312,799.74
  5. Step 5: Solve for x
    x = 197,918,312,799.74/478,229.48
  6. Step 6: Final answer
    x = 413,856.36

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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.