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Finding the Fourth Proportional to 409,061.52, 564,679.08 and 275,003.28

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Solution

The fourth proportional to 409,061.52, 564,679.08 and 275,003.28 is: 379,621.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,061.52 : 564,679.08 = 275,003.28 : x
  2. Step 2: Convert to fraction form
    409,061.52/564,679.08 = 275,003.28/x
  3. Step 3: Cross multiply
    409,061.52x = 564,679.08 × 275,003.28
  4. Step 4: Simplify right side
    409,061.52x = 155,288,599,147.38
  5. Step 5: Solve for x
    x = 155,288,599,147.38/409,061.52
  6. Step 6: Final answer
    x = 379,621.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.