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Finding the Fourth Proportional to 424,252.20, 636,378.30 and 424,252.20

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Solution

The fourth proportional to 424,252.20, 636,378.30 and 424,252.20 is: 636,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,252.20 : 636,378.30 = 424,252.20 : x
  2. Step 2: Convert to fraction form
    424,252.20/636,378.30 = 424,252.20/x
  3. Step 3: Cross multiply
    424,252.20x = 636,378.30 × 424,252.20
  4. Step 4: Simplify right side
    424,252.20x = 269,984,893,807.26
  5. Step 5: Solve for x
    x = 269,984,893,807.26/424,252.20
  6. Step 6: Final answer
    x = 636,378.30

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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.