Home / 497,769.40-746,586.90-198,470.20

Finding the Fourth Proportional to 497,769.40, 746,586.90 and 198,470.20

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Solution

The fourth proportional to 497,769.40, 746,586.90 and 198,470.20 is: 297,678.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,769.40 : 746,586.90 = 198,470.20 : x
  2. Step 2: Convert to fraction form
    497,769.40/746,586.90 = 198,470.20/x
  3. Step 3: Cross multiply
    497,769.40x = 746,586.90 × 198,470.20
  4. Step 4: Simplify right side
    497,769.40x = 148,175,251,360.38
  5. Step 5: Solve for x
    x = 148,175,251,360.38/497,769.40
  6. Step 6: Final answer
    x = 297,678.51

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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.