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Finding the Fourth Proportional to 579,872.28, 869,599.98 and 200,690.10

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Solution

The fourth proportional to 579,872.28, 869,599.98 and 200,690.10 is: 300,963.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,872.28 : 869,599.98 = 200,690.10 : x
  2. Step 2: Convert to fraction form
    579,872.28/869,599.98 = 200,690.10/x
  3. Step 3: Cross multiply
    579,872.28x = 869,599.98 × 200,690.10
  4. Step 4: Simplify right side
    579,872.28x = 174,520,106,946.20
  5. Step 5: Solve for x
    x = 174,520,106,946.20/579,872.28
  6. Step 6: Final answer
    x = 300,963.01

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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.