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Finding the Fourth Proportional to 424,005.10, 636,007.65 and 299,589.10

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Solution

The fourth proportional to 424,005.10, 636,007.65 and 299,589.10 is: 449,383.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,005.10 : 636,007.65 = 299,589.10 : x
  2. Step 2: Convert to fraction form
    424,005.10/636,007.65 = 299,589.10/x
  3. Step 3: Cross multiply
    424,005.10x = 636,007.65 × 299,589.10
  4. Step 4: Simplify right side
    424,005.10x = 190,540,959,456.62
  5. Step 5: Solve for x
    x = 190,540,959,456.62/424,005.10
  6. Step 6: Final answer
    x = 449,383.65

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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.