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Finding the Fourth Proportional to 567,249.06, 782,820.11 and 312,616.65

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Solution

The fourth proportional to 567,249.06, 782,820.11 and 312,616.65 is: 431,420.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,249.06 : 782,820.11 = 312,616.65 : x
  2. Step 2: Convert to fraction form
    567,249.06/782,820.11 = 312,616.65/x
  3. Step 3: Cross multiply
    567,249.06x = 782,820.11 × 312,616.65
  4. Step 4: Simplify right side
    567,249.06x = 244,722,600,340.83
  5. Step 5: Solve for x
    x = 244,722,600,340.83/567,249.06
  6. Step 6: Final answer
    x = 431,420.02

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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.