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Finding the Fourth Proportional to 636,675.50, 878,736.98 and 364,925.54

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Solution

The fourth proportional to 636,675.50, 878,736.98 and 364,925.54 is: 503,668.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,675.50 : 878,736.98 = 364,925.54 : x
  2. Step 2: Convert to fraction form
    636,675.50/878,736.98 = 364,925.54/x
  3. Step 3: Cross multiply
    636,675.50x = 878,736.98 × 364,925.54
  4. Step 4: Simplify right side
    636,675.50x = 320,673,566,944.47
  5. Step 5: Solve for x
    x = 320,673,566,944.47/636,675.50
  6. Step 6: Final answer
    x = 503,668.77

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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.