Home / 717,990.12-1,077,184.76-313,217.73

Finding the Fourth Proportional to 717,990.12, 1,077,184.76 and 313,217.73

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Solution

The fourth proportional to 717,990.12, 1,077,184.76 and 313,217.73 is: 469,913.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,990.12 : 1,077,184.76 = 313,217.73 : x
  2. Step 2: Convert to fraction form
    717,990.12/1,077,184.76 = 313,217.73/x
  3. Step 3: Cross multiply
    717,990.12x = 1,077,184.76 × 313,217.73
  4. Step 4: Simplify right side
    717,990.12x = 337,393,363,751.71
  5. Step 5: Solve for x
    x = 337,393,363,751.71/717,990.12
  6. Step 6: Final answer
    x = 469,913.66

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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.