Home / 876,288.20-1,314,432.30-498,374.60

Finding the Fourth Proportional to 876,288.20, 1,314,432.30 and 498,374.60

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Solution

The fourth proportional to 876,288.20, 1,314,432.30 and 498,374.60 is: 747,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,288.20 : 1,314,432.30 = 498,374.60 : x
  2. Step 2: Convert to fraction form
    876,288.20/1,314,432.30 = 498,374.60/x
  3. Step 3: Cross multiply
    876,288.20x = 1,314,432.30 × 498,374.60
  4. Step 4: Simplify right side
    876,288.20x = 655,079,671,739.58
  5. Step 5: Solve for x
    x = 655,079,671,739.58/876,288.20
  6. Step 6: Final answer
    x = 747,561.90

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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.