Home / 1,438,902.45-2,158,566.92-479,044.55

Finding the Fourth Proportional to 1,438,902.45, 2,158,566.92 and 479,044.55

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Solution

The fourth proportional to 1,438,902.45, 2,158,566.92 and 479,044.55 is: 718,637.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,902.45 : 2,158,566.92 = 479,044.55 : x
  2. Step 2: Convert to fraction form
    1,438,902.45/2,158,566.92 = 479,044.55/x
  3. Step 3: Cross multiply
    1,438,902.45x = 2,158,566.92 × 479,044.55
  4. Step 4: Simplify right side
    1,438,902.45x = 1,034,049,718,836.29
  5. Step 5: Solve for x
    x = 1,034,049,718,836.29/1,438,902.45
  6. Step 6: Final answer
    x = 718,637.82

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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.