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Finding the Fourth Proportional to 567,251.45, 782,806.98 and 312,602.63

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Solution

The fourth proportional to 567,251.45, 782,806.98 and 312,602.63 is: 431,391.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,251.45 : 782,806.98 = 312,602.63 : x
  2. Step 2: Convert to fraction form
    567,251.45/782,806.98 = 312,602.63/x
  3. Step 3: Cross multiply
    567,251.45x = 782,806.98 × 312,602.63
  4. Step 4: Simplify right side
    567,251.45x = 244,707,516,816.32
  5. Step 5: Solve for x
    x = 244,707,516,816.32/567,251.45
  6. Step 6: Final answer
    x = 431,391.61

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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.