Home / 1,242,293.20-1,863,002.40-443,600.80

Finding the Fourth Proportional to 1,242,293.20, 1,863,002.40 and 443,600.80

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Solution

The fourth proportional to 1,242,293.20, 1,863,002.40 and 443,600.80 is: 665,245.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,293.20 : 1,863,002.40 = 443,600.80 : x
  2. Step 2: Convert to fraction form
    1,242,293.20/1,863,002.40 = 443,600.80/x
  3. Step 3: Cross multiply
    1,242,293.20x = 1,863,002.40 × 443,600.80
  4. Step 4: Simplify right side
    1,242,293.20x = 826,429,355,041.92
  5. Step 5: Solve for x
    x = 826,429,355,041.92/1,242,293.20
  6. Step 6: Final answer
    x = 665,245.01

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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.