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Finding the Fourth Proportional to 542,998.40, 814,497.60 and 342,669.20

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Solution

The fourth proportional to 542,998.40, 814,497.60 and 342,669.20 is: 514,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,998.40 : 814,497.60 = 342,669.20 : x
  2. Step 2: Convert to fraction form
    542,998.40/814,497.60 = 342,669.20/x
  3. Step 3: Cross multiply
    542,998.40x = 814,497.60 × 342,669.20
  4. Step 4: Simplify right side
    542,998.40x = 279,103,240,993.92
  5. Step 5: Solve for x
    x = 279,103,240,993.92/542,998.40
  6. Step 6: Final answer
    x = 514,003.80

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Similar ratio
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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.