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Finding the Fourth Proportional to 546,153.88, 753,717.92 and 304,438.20

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Solution

The fourth proportional to 546,153.88, 753,717.92 and 304,438.20 is: 420,138.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,153.88 : 753,717.92 = 304,438.20 : x
  2. Step 2: Convert to fraction form
    546,153.88/753,717.92 = 304,438.20/x
  3. Step 3: Cross multiply
    546,153.88x = 753,717.92 × 304,438.20
  4. Step 4: Simplify right side
    546,153.88x = 229,460,526,872.54
  5. Step 5: Solve for x
    x = 229,460,526,872.54/546,153.88
  6. Step 6: Final answer
    x = 420,138.97

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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.