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Finding the Fourth Proportional to 554,427.10, 831,640.65 and 498,439.90

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Solution

The fourth proportional to 554,427.10, 831,640.65 and 498,439.90 is: 747,659.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,427.10 : 831,640.65 = 498,439.90 : x
  2. Step 2: Convert to fraction form
    554,427.10/831,640.65 = 498,439.90/x
  3. Step 3: Cross multiply
    554,427.10x = 831,640.65 × 498,439.90
  4. Step 4: Simplify right side
    554,427.10x = 414,522,882,421.94
  5. Step 5: Solve for x
    x = 414,522,882,421.94/554,427.10
  6. Step 6: Final answer
    x = 747,659.85

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Similar ratio
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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.