Home / 865,808.39-1,298,734.76-410,292.74

Finding the Fourth Proportional to 865,808.39, 1,298,734.76 and 410,292.74

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Solution

The fourth proportional to 865,808.39, 1,298,734.76 and 410,292.74 is: 615,449.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,808.39 : 1,298,734.76 = 410,292.74 : x
  2. Step 2: Convert to fraction form
    865,808.39/1,298,734.76 = 410,292.74/x
  3. Step 3: Cross multiply
    865,808.39x = 1,298,734.76 × 410,292.74
  4. Step 4: Simplify right side
    865,808.39x = 532,861,447,486.21
  5. Step 5: Solve for x
    x = 532,861,447,486.21/865,808.39
  6. Step 6: Final answer
    x = 615,449.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.