Home / 1,240,739.10-1,861,108.65-442,046.70

Finding the Fourth Proportional to 1,240,739.10, 1,861,108.65 and 442,046.70

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Solution

The fourth proportional to 1,240,739.10, 1,861,108.65 and 442,046.70 is: 663,070.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,739.10 : 1,861,108.65 = 442,046.70 : x
  2. Step 2: Convert to fraction form
    1,240,739.10/1,861,108.65 = 442,046.70/x
  3. Step 3: Cross multiply
    1,240,739.10x = 1,861,108.65 × 442,046.70
  4. Step 4: Simplify right side
    1,240,739.10x = 822,696,937,073.96
  5. Step 5: Solve for x
    x = 822,696,937,073.96/1,240,739.10
  6. Step 6: Final answer
    x = 663,070.05

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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.