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Finding the Fourth Proportional to 497,954.70, 745,947.90 and 272,912.40

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Solution

The fourth proportional to 497,954.70, 745,947.90 and 272,912.40 is: 408,829.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,954.70 : 745,947.90 = 272,912.40 : x
  2. Step 2: Convert to fraction form
    497,954.70/745,947.90 = 272,912.40/x
  3. Step 3: Cross multiply
    497,954.70x = 745,947.90 × 272,912.40
  4. Step 4: Simplify right side
    497,954.70x = 203,578,431,663.96
  5. Step 5: Solve for x
    x = 203,578,431,663.96/497,954.70
  6. Step 6: Final answer
    x = 408,829.22

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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.