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Finding the Fourth Proportional to 497,972.70, 745,974.90 and 272,930.40

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Solution

The fourth proportional to 497,972.70, 745,974.90 and 272,930.40 is: 408,856.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,972.70 : 745,974.90 = 272,930.40 : x
  2. Step 2: Convert to fraction form
    497,972.70/745,974.90 = 272,930.40/x
  3. Step 3: Cross multiply
    497,972.70x = 745,974.90 × 272,930.40
  4. Step 4: Simplify right side
    497,972.70x = 203,599,227,846.96
  5. Step 5: Solve for x
    x = 203,599,227,846.96/497,972.70
  6. Step 6: Final answer
    x = 408,856.20

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1.5x scale

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.