Home / 567,206.12-782,761.20-312,573.80

Finding the Fourth Proportional to 567,206.12, 782,761.20 and 312,573.80

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Solution

The fourth proportional to 567,206.12, 782,761.20 and 312,573.80 is: 431,361.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,206.12 : 782,761.20 = 312,573.80 : x
  2. Step 2: Convert to fraction form
    567,206.12/782,761.20 = 312,573.80/x
  3. Step 3: Cross multiply
    567,206.12x = 782,761.20 × 312,573.80
  4. Step 4: Simplify right side
    567,206.12x = 244,670,642,776.56
  5. Step 5: Solve for x
    x = 244,670,642,776.56/567,206.12
  6. Step 6: Final answer
    x = 431,361.08

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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.