Home / 1,242,006.20-1,863,009.30-864,092.60

Finding the Fourth Proportional to 1,242,006.20, 1,863,009.30 and 864,092.60

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Solution

The fourth proportional to 1,242,006.20, 1,863,009.30 and 864,092.60 is: 1,296,138.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,006.20 : 1,863,009.30 = 864,092.60 : x
  2. Step 2: Convert to fraction form
    1,242,006.20/1,863,009.30 = 864,092.60/x
  3. Step 3: Cross multiply
    1,242,006.20x = 1,863,009.30 × 864,092.60
  4. Step 4: Simplify right side
    1,242,006.20x = 1,609,812,549,861.18
  5. Step 5: Solve for x
    x = 1,609,812,549,861.18/1,242,006.20
  6. Step 6: Final answer
    x = 1,296,138.90

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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.