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Finding the Fourth Proportional to 559,717.20, 839,753.38 and 199,880.20

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Solution

The fourth proportional to 559,717.20, 839,753.38 and 199,880.20 is: 299,883.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,717.20 : 839,753.38 = 199,880.20 : x
  2. Step 2: Convert to fraction form
    559,717.20/839,753.38 = 199,880.20/x
  3. Step 3: Cross multiply
    559,717.20x = 839,753.38 × 199,880.20
  4. Step 4: Simplify right side
    559,717.20x = 167,850,073,545.08
  5. Step 5: Solve for x
    x = 167,850,073,545.08/559,717.20
  6. Step 6: Final answer
    x = 299,883.72

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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.