Home / 567,251.07-782,822.88-312,618.66

Finding the Fourth Proportional to 567,251.07, 782,822.88 and 312,618.66

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Solution

The fourth proportional to 567,251.07, 782,822.88 and 312,618.66 is: 431,422.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,251.07 : 782,822.88 = 312,618.66 : x
  2. Step 2: Convert to fraction form
    567,251.07/782,822.88 = 312,618.66/x
  3. Step 3: Cross multiply
    567,251.07x = 782,822.88 × 312,618.66
  4. Step 4: Simplify right side
    567,251.07x = 244,725,039,762.94
  5. Step 5: Solve for x
    x = 244,725,039,762.94/567,251.07
  6. Step 6: Final answer
    x = 431,422.79

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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.