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Finding the Fourth Proportional to 636,049.49, 877,769.43 and 374,357.36

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Solution

The fourth proportional to 636,049.49, 877,769.43 and 374,357.36 is: 516,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,049.49 : 877,769.43 = 374,357.36 : x
  2. Step 2: Convert to fraction form
    636,049.49/877,769.43 = 374,357.36/x
  3. Step 3: Cross multiply
    636,049.49x = 877,769.43 × 374,357.36
  4. Step 4: Simplify right side
    636,049.49x = 328,599,447,454.11
  5. Step 5: Solve for x
    x = 328,599,447,454.11/636,049.49
  6. Step 6: Final answer
    x = 516,625.60

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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.