Home / 880,789.65-1,215,432.17-518,143.44

Finding the Fourth Proportional to 880,789.65, 1,215,432.17 and 518,143.44

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Solution

The fourth proportional to 880,789.65, 1,215,432.17 and 518,143.44 is: 715,004.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,789.65 : 1,215,432.17 = 518,143.44 : x
  2. Step 2: Convert to fraction form
    880,789.65/1,215,432.17 = 518,143.44/x
  3. Step 3: Cross multiply
    880,789.65x = 1,215,432.17 × 518,143.44
  4. Step 4: Simplify right side
    880,789.65x = 629,768,207,970.67
  5. Step 5: Solve for x
    x = 629,768,207,970.67/880,789.65
  6. Step 6: Final answer
    x = 715,004.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.