Home / 1,188,314.55-1,782,996.71-479,726.55

Finding the Fourth Proportional to 1,188,314.55, 1,782,996.71 and 479,726.55

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Solution

The fourth proportional to 1,188,314.55, 1,782,996.71 and 479,726.55 is: 719,801.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,314.55 : 1,782,996.71 = 479,726.55 : x
  2. Step 2: Convert to fraction form
    1,188,314.55/1,782,996.71 = 479,726.55/x
  3. Step 3: Cross multiply
    1,188,314.55x = 1,782,996.71 × 479,726.55
  4. Step 4: Simplify right side
    1,188,314.55x = 855,350,857,951.02
  5. Step 5: Solve for x
    x = 855,350,857,951.02/1,188,314.55
  6. Step 6: Final answer
    x = 719,801.72

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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.