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Finding the Fourth Proportional to 636,219, 877,963.50 and 364,277.88

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Solution

The fourth proportional to 636,219, 877,963.50 and 364,277.88 is: 502,692.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,219 : 877,963.50 = 364,277.88 : x
  2. Step 2: Convert to fraction form
    636,219/877,963.50 = 364,277.88/x
  3. Step 3: Cross multiply
    636,219x = 877,963.50 × 364,277.88
  4. Step 4: Simplify right side
    636,219x = 319,822,682,497.38
  5. Step 5: Solve for x
    x = 319,822,682,497.38/636,219
  6. Step 6: Final answer
    x = 502,692.76

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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.