Home / 674,934.20-1,012,898.72-319,946.84

Finding the Fourth Proportional to 674,934.20, 1,012,898.72 and 319,946.84

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Solution

The fourth proportional to 674,934.20, 1,012,898.72 and 319,946.84 is: 480,156.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,934.20 : 1,012,898.72 = 319,946.84 : x
  2. Step 2: Convert to fraction form
    674,934.20/1,012,898.72 = 319,946.84/x
  3. Step 3: Cross multiply
    674,934.20x = 1,012,898.72 × 319,946.84
  4. Step 4: Simplify right side
    674,934.20x = 324,073,744,704.05
  5. Step 5: Solve for x
    x = 324,073,744,704.05/674,934.20
  6. Step 6: Final answer
    x = 480,156.06

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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.