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Finding the Fourth Proportional to 566,996.53, 782,454.87 and 312,347.72

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Solution

The fourth proportional to 566,996.53, 782,454.87 and 312,347.72 is: 431,039.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,996.53 : 782,454.87 = 312,347.72 : x
  2. Step 2: Convert to fraction form
    566,996.53/782,454.87 = 312,347.72/x
  3. Step 3: Cross multiply
    566,996.53x = 782,454.87 × 312,347.72
  4. Step 4: Simplify right side
    566,996.53x = 244,397,992,498.02
  5. Step 5: Solve for x
    x = 244,397,992,498.02/566,996.53
  6. Step 6: Final answer
    x = 431,039.66

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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.