Home / 542,145.60-747,719.04-381,532.80

Finding the Fourth Proportional to 542,145.60, 747,719.04 and 381,532.80

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Solution

The fourth proportional to 542,145.60, 747,719.04 and 381,532.80 is: 526,204.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,145.60 : 747,719.04 = 381,532.80 : x
  2. Step 2: Convert to fraction form
    542,145.60/747,719.04 = 381,532.80/x
  3. Step 3: Cross multiply
    542,145.60x = 747,719.04 × 381,532.80
  4. Step 4: Simplify right side
    542,145.60x = 285,279,338,944.51
  5. Step 5: Solve for x
    x = 285,279,338,944.51/542,145.60
  6. Step 6: Final answer
    x = 526,204.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.