Home / 642,199.80-963,301.98-215,723.46

Finding the Fourth Proportional to 642,199.80, 963,301.98 and 215,723.46

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Solution

The fourth proportional to 642,199.80, 963,301.98 and 215,723.46 is: 323,585.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,199.80 : 963,301.98 = 215,723.46 : x
  2. Step 2: Convert to fraction form
    642,199.80/963,301.98 = 215,723.46/x
  3. Step 3: Cross multiply
    642,199.80x = 963,301.98 × 215,723.46
  4. Step 4: Simplify right side
    642,199.80x = 207,806,836,150.45
  5. Step 5: Solve for x
    x = 207,806,836,150.45/642,199.80
  6. Step 6: Final answer
    x = 323,585.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.