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Finding the Fourth Proportional to 492,321.96, 739,868.04 and 292,678.20

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Solution

The fourth proportional to 492,321.96, 739,868.04 and 292,678.20 is: 439,840.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,321.96 : 739,868.04 = 292,678.20 : x
  2. Step 2: Convert to fraction form
    492,321.96/739,868.04 = 292,678.20/x
  3. Step 3: Cross multiply
    492,321.96x = 739,868.04 × 292,678.20
  4. Step 4: Simplify right side
    492,321.96x = 216,543,246,184.73
  5. Step 5: Solve for x
    x = 216,543,246,184.73/492,321.96
  6. Step 6: Final answer
    x = 439,840.72

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1.5x scale

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.