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Finding the Fourth Proportional to 559,310.16, 771,854.76 and 304,663.44

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Solution

The fourth proportional to 559,310.16, 771,854.76 and 304,663.44 is: 420,439.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,310.16 : 771,854.76 = 304,663.44 : x
  2. Step 2: Convert to fraction form
    559,310.16/771,854.76 = 304,663.44/x
  3. Step 3: Cross multiply
    559,310.16x = 771,854.76 × 304,663.44
  4. Step 4: Simplify right side
    559,310.16x = 235,155,926,361.97
  5. Step 5: Solve for x
    x = 235,155,926,361.97/559,310.16
  6. Step 6: Final answer
    x = 420,439.22

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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.