Home / 609,047.28-913,631.76-209,635.20

Finding the Fourth Proportional to 609,047.28, 913,631.76 and 209,635.20

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Solution

The fourth proportional to 609,047.28, 913,631.76 and 209,635.20 is: 314,473.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,047.28 : 913,631.76 = 209,635.20 : x
  2. Step 2: Convert to fraction form
    609,047.28/913,631.76 = 209,635.20/x
  3. Step 3: Cross multiply
    609,047.28x = 913,631.76 × 209,635.20
  4. Step 4: Simplify right side
    609,047.28x = 191,529,376,733.95
  5. Step 5: Solve for x
    x = 191,529,376,733.95/609,047.28
  6. Step 6: Final answer
    x = 314,473.74

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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.