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Finding the Fourth Proportional to 347,925.78, 479,069.91 and 304,657.74

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Solution

The fourth proportional to 347,925.78, 479,069.91 and 304,657.74 is: 419,492.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,925.78 : 479,069.91 = 304,657.74 : x
  2. Step 2: Convert to fraction form
    347,925.78/479,069.91 = 304,657.74/x
  3. Step 3: Cross multiply
    347,925.78x = 479,069.91 × 304,657.74
  4. Step 4: Simplify right side
    347,925.78x = 145,952,356,082.60
  5. Step 5: Solve for x
    x = 145,952,356,082.60/347,925.78
  6. Step 6: Final answer
    x = 419,492.79

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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.