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Finding the Fourth Proportional to 636,210, 877,992.84 and 364,326.48

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Solution

The fourth proportional to 636,210, 877,992.84 and 364,326.48 is: 502,783.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,210 : 877,992.84 = 364,326.48 : x
  2. Step 2: Convert to fraction form
    636,210/877,992.84 = 364,326.48/x
  3. Step 3: Cross multiply
    636,210x = 877,992.84 × 364,326.48
  4. Step 4: Simplify right side
    636,210x = 319,876,040,862.40
  5. Step 5: Solve for x
    x = 319,876,040,862.40/636,210
  6. Step 6: Final answer
    x = 502,783.74

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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.