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Finding the Fourth Proportional to 424,000.10, 636,000.15 and 299,584.10

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Solution

The fourth proportional to 424,000.10, 636,000.15 and 299,584.10 is: 449,376.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,000.10 : 636,000.15 = 299,584.10 : x
  2. Step 2: Convert to fraction form
    424,000.10/636,000.15 = 299,584.10/x
  3. Step 3: Cross multiply
    424,000.10x = 636,000.15 × 299,584.10
  4. Step 4: Simplify right side
    424,000.10x = 190,535,532,537.62
  5. Step 5: Solve for x
    x = 190,535,532,537.62/424,000.10
  6. Step 6: Final answer
    x = 449,376.15

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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.