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Finding the Fourth Proportional to 636,549.96, 878,449.65 and 364,641.63

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Solution

The fourth proportional to 636,549.96, 878,449.65 and 364,641.63 is: 503,211.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,549.96 : 878,449.65 = 364,641.63 : x
  2. Step 2: Convert to fraction form
    636,549.96/878,449.65 = 364,641.63/x
  3. Step 3: Cross multiply
    636,549.96x = 878,449.65 × 364,641.63
  4. Step 4: Simplify right side
    636,549.96x = 320,319,312,248.93
  5. Step 5: Solve for x
    x = 320,319,312,248.93/636,549.96
  6. Step 6: Final answer
    x = 503,211.58

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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.