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Finding the Fourth Proportional to 636,673.50, 878,734.25 and 364,923.57

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Solution

The fourth proportional to 636,673.50, 878,734.25 and 364,923.57 is: 503,666.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,673.50 : 878,734.25 = 364,923.57 : x
  2. Step 2: Convert to fraction form
    636,673.50/878,734.25 = 364,923.57/x
  3. Step 3: Cross multiply
    636,673.50x = 878,734.25 × 364,923.57
  4. Step 4: Simplify right side
    636,673.50x = 320,670,837,766.66
  5. Step 5: Solve for x
    x = 320,670,837,766.66/636,673.50
  6. Step 6: Final answer
    x = 503,666.07

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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.