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Finding the Fourth Proportional to 636,042.36, 877,759.50 and 349,572.60

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Solution

The fourth proportional to 636,042.36, 877,759.50 and 349,572.60 is: 482,421.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,042.36 : 877,759.50 = 349,572.60 : x
  2. Step 2: Convert to fraction form
    636,042.36/877,759.50 = 349,572.60/x
  3. Step 3: Cross multiply
    636,042.36x = 877,759.50 × 349,572.60
  4. Step 4: Simplify right side
    636,042.36x = 306,840,670,589.70
  5. Step 5: Solve for x
    x = 306,840,670,589.70/636,042.36
  6. Step 6: Final answer
    x = 482,421.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.