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Finding the Fourth Proportional to 636,677.25, 878,739.39 and 364,927.29

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Solution

The fourth proportional to 636,677.25, 878,739.39 and 364,927.29 is: 503,671.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,677.25 : 878,739.39 = 364,927.29 : x
  2. Step 2: Convert to fraction form
    636,677.25/878,739.39 = 364,927.29/x
  3. Step 3: Cross multiply
    636,677.25x = 878,739.39 × 364,927.29
  4. Step 4: Simplify right side
    636,677.25x = 320,675,984,208.95
  5. Step 5: Solve for x
    x = 320,675,984,208.95/636,677.25
  6. Step 6: Final answer
    x = 503,671.18

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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.