Home / 645,325.28-967,356.08-361,154.60

Finding the Fourth Proportional to 645,325.28, 967,356.08 and 361,154.60

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Solution

The fourth proportional to 645,325.28, 967,356.08 and 361,154.60 is: 541,378.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,325.28 : 967,356.08 = 361,154.60 : x
  2. Step 2: Convert to fraction form
    645,325.28/967,356.08 = 361,154.60/x
  3. Step 3: Cross multiply
    645,325.28x = 967,356.08 × 361,154.60
  4. Step 4: Simplify right side
    645,325.28x = 349,365,098,129.97
  5. Step 5: Solve for x
    x = 349,365,098,129.97/645,325.28
  6. Step 6: Final answer
    x = 541,378.29

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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.