Home / 1,320,869.70-1,981,304.55-479,312.10

Finding the Fourth Proportional to 1,320,869.70, 1,981,304.55 and 479,312.10

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Solution

The fourth proportional to 1,320,869.70, 1,981,304.55 and 479,312.10 is: 718,968.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,869.70 : 1,981,304.55 = 479,312.10 : x
  2. Step 2: Convert to fraction form
    1,320,869.70/1,981,304.55 = 479,312.10/x
  3. Step 3: Cross multiply
    1,320,869.70x = 1,981,304.55 × 479,312.10
  4. Step 4: Simplify right side
    1,320,869.70x = 949,663,244,600.06
  5. Step 5: Solve for x
    x = 949,663,244,600.06/1,320,869.70
  6. Step 6: Final answer
    x = 718,968.15

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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.