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Finding the Fourth Proportional to 469,255.61, 702,138.98 and 279,818.89

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Solution

The fourth proportional to 469,255.61, 702,138.98 and 279,818.89 is: 418,688.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,255.61 : 702,138.98 = 279,818.89 : x
  2. Step 2: Convert to fraction form
    469,255.61/702,138.98 = 279,818.89/x
  3. Step 3: Cross multiply
    469,255.61x = 702,138.98 × 279,818.89
  4. Step 4: Simplify right side
    469,255.61x = 196,471,748,953.53
  5. Step 5: Solve for x
    x = 196,471,748,953.53/469,255.61
  6. Step 6: Final answer
    x = 418,688.12

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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.