Home / 386,492.20-579,839.10-149,842.60

Finding the Fourth Proportional to 386,492.20, 579,839.10 and 149,842.60

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Solution

The fourth proportional to 386,492.20, 579,839.10 and 149,842.60 is: 224,802.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,492.20 : 579,839.10 = 149,842.60 : x
  2. Step 2: Convert to fraction form
    386,492.20/579,839.10 = 149,842.60/x
  3. Step 3: Cross multiply
    386,492.20x = 579,839.10 × 149,842.60
  4. Step 4: Simplify right side
    386,492.20x = 86,884,598,325.66
  5. Step 5: Solve for x
    x = 86,884,598,325.66/386,492.20
  6. Step 6: Final answer
    x = 224,802.98

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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.