Home / 1,432,400.76-2,148,741.27-521,830.55

Finding the Fourth Proportional to 1,432,400.76, 2,148,741.27 and 521,830.55

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Solution

The fourth proportional to 1,432,400.76, 2,148,741.27 and 521,830.55 is: 782,796.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,400.76 : 2,148,741.27 = 521,830.55 : x
  2. Step 2: Convert to fraction form
    1,432,400.76/2,148,741.27 = 521,830.55/x
  3. Step 3: Cross multiply
    1,432,400.76x = 2,148,741.27 × 521,830.55
  4. Step 4: Simplify right side
    1,432,400.76x = 1,121,278,844,103.65
  5. Step 5: Solve for x
    x = 1,121,278,844,103.65/1,432,400.76
  6. Step 6: Final answer
    x = 782,796.88

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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.