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Finding the Fourth Proportional to 636,716.24, 878,697.96 and 350,231.12

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Solution

The fourth proportional to 636,716.24, 878,697.96 and 350,231.12 is: 483,335.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,716.24 : 878,697.96 = 350,231.12 : x
  2. Step 2: Convert to fraction form
    636,716.24/878,697.96 = 350,231.12/x
  3. Step 3: Cross multiply
    636,716.24x = 878,697.96 × 350,231.12
  4. Step 4: Simplify right side
    636,716.24x = 307,747,370,672.52
  5. Step 5: Solve for x
    x = 307,747,370,672.52/636,716.24
  6. Step 6: Final answer
    x = 483,335.20

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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.