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Finding the Fourth Proportional to 582,480.80, 873,721.20 and 161,760.80

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Solution

The fourth proportional to 582,480.80, 873,721.20 and 161,760.80 is: 242,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,480.80 : 873,721.20 = 161,760.80 : x
  2. Step 2: Convert to fraction form
    582,480.80/873,721.20 = 161,760.80/x
  3. Step 3: Cross multiply
    582,480.80x = 873,721.20 × 161,760.80
  4. Step 4: Simplify right side
    582,480.80x = 141,333,840,288.96
  5. Step 5: Solve for x
    x = 141,333,840,288.96/582,480.80
  6. Step 6: Final answer
    x = 242,641.20

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Double scale
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Similar ratio
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1.5x scale

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.