Home / 865,612.20-1,298,418.30-824,277.90

Finding the Fourth Proportional to 865,612.20, 1,298,418.30 and 824,277.90

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Solution

The fourth proportional to 865,612.20, 1,298,418.30 and 824,277.90 is: 1,236,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,612.20 : 1,298,418.30 = 824,277.90 : x
  2. Step 2: Convert to fraction form
    865,612.20/1,298,418.30 = 824,277.90/x
  3. Step 3: Cross multiply
    865,612.20x = 1,298,418.30 × 824,277.90
  4. Step 4: Simplify right side
    865,612.20x = 1,070,257,509,645.57
  5. Step 5: Solve for x
    x = 1,070,257,509,645.57/865,612.20
  6. Step 6: Final answer
    x = 1,236,416.85

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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.