Home / 1,242,102.80-1,863,154.20-443,410.40

Finding the Fourth Proportional to 1,242,102.80, 1,863,154.20 and 443,410.40

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Solution

The fourth proportional to 1,242,102.80, 1,863,154.20 and 443,410.40 is: 665,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,102.80 : 1,863,154.20 = 443,410.40 : x
  2. Step 2: Convert to fraction form
    1,242,102.80/1,863,154.20 = 443,410.40/x
  3. Step 3: Cross multiply
    1,242,102.80x = 1,863,154.20 × 443,410.40
  4. Step 4: Simplify right side
    1,242,102.80x = 826,141,949,083.68
  5. Step 5: Solve for x
    x = 826,141,949,083.68/1,242,102.80
  6. Step 6: Final answer
    x = 665,115.60

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Double scale
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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.