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Finding the Fourth Proportional to 424,773.94, 636,803.79 and 284,103.22

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Solution

The fourth proportional to 424,773.94, 636,803.79 and 284,103.22 is: 425,915.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,773.94 : 636,803.79 = 284,103.22 : x
  2. Step 2: Convert to fraction form
    424,773.94/636,803.79 = 284,103.22/x
  3. Step 3: Cross multiply
    424,773.94x = 636,803.79 × 284,103.22
  4. Step 4: Simplify right side
    424,773.94x = 180,918,007,247.20
  5. Step 5: Solve for x
    x = 180,918,007,247.20/424,773.94
  6. Step 6: Final answer
    x = 425,915.98

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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.