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Finding the Fourth Proportional to 546,984, 754,863.84 and 308,520

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Solution

The fourth proportional to 546,984, 754,863.84 and 308,520 is: 425,772.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,984 : 754,863.84 = 308,520 : x
  2. Step 2: Convert to fraction form
    546,984/754,863.84 = 308,520/x
  3. Step 3: Cross multiply
    546,984x = 754,863.84 × 308,520
  4. Step 4: Simplify right side
    546,984x = 232,890,591,916.80
  5. Step 5: Solve for x
    x = 232,890,591,916.80/546,984
  6. Step 6: Final answer
    x = 425,772.22

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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.