Home / 926,647.20-1,390,489.20-394,077.60

Finding the Fourth Proportional to 926,647.20, 1,390,489.20 and 394,077.60

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Solution

The fourth proportional to 926,647.20, 1,390,489.20 and 394,077.60 is: 591,336.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,647.20 : 1,390,489.20 = 394,077.60 : x
  2. Step 2: Convert to fraction form
    926,647.20/1,390,489.20 = 394,077.60/x
  3. Step 3: Cross multiply
    926,647.20x = 1,390,489.20 × 394,077.60
  4. Step 4: Simplify right side
    926,647.20x = 547,960,646,761.92
  5. Step 5: Solve for x
    x = 547,960,646,761.92/926,647.20
  6. Step 6: Final answer
    x = 591,336.86

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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.