Home / 452,213.28-678,326.40-215,580.96

Finding the Fourth Proportional to 452,213.28, 678,326.40 and 215,580.96

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Solution

The fourth proportional to 452,213.28, 678,326.40 and 215,580.96 is: 323,374.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,213.28 : 678,326.40 = 215,580.96 : x
  2. Step 2: Convert to fraction form
    452,213.28/678,326.40 = 215,580.96/x
  3. Step 3: Cross multiply
    452,213.28x = 678,326.40 × 215,580.96
  4. Step 4: Simplify right side
    452,213.28x = 146,234,256,505.34
  5. Step 5: Solve for x
    x = 146,234,256,505.34/452,213.28
  6. Step 6: Final answer
    x = 323,374.53

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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.