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Finding the Fourth Proportional to 629,481.60, 868,657.45 and 357,548.66

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Solution

The fourth proportional to 629,481.60, 868,657.45 and 357,548.66 is: 493,401.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,481.60 : 868,657.45 = 357,548.66 : x
  2. Step 2: Convert to fraction form
    629,481.60/868,657.45 = 357,548.66/x
  3. Step 3: Cross multiply
    629,481.60x = 868,657.45 × 357,548.66
  4. Step 4: Simplify right side
    629,481.60x = 310,587,307,246.52
  5. Step 5: Solve for x
    x = 310,587,307,246.52/629,481.60
  6. Step 6: Final answer
    x = 493,401.72

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1.5x scale

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.