Home / 645,327.28-967,359.08-361,156.60

Finding the Fourth Proportional to 645,327.28, 967,359.08 and 361,156.60

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Solution

The fourth proportional to 645,327.28, 967,359.08 and 361,156.60 is: 541,381.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,327.28 : 967,359.08 = 361,156.60 : x
  2. Step 2: Convert to fraction form
    645,327.28/967,359.08 = 361,156.60/x
  3. Step 3: Cross multiply
    645,327.28x = 967,359.08 × 361,156.60
  4. Step 4: Simplify right side
    645,327.28x = 349,368,116,311.93
  5. Step 5: Solve for x
    x = 349,368,116,311.93/645,327.28
  6. Step 6: Final answer
    x = 541,381.29

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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.