Home / 859,781.18-1,287,705.06-410,817.62

Finding the Fourth Proportional to 859,781.18, 1,287,705.06 and 410,817.62

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Solution

The fourth proportional to 859,781.18, 1,287,705.06 and 410,817.62 is: 615,286.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,781.18 : 1,287,705.06 = 410,817.62 : x
  2. Step 2: Convert to fraction form
    859,781.18/1,287,705.06 = 410,817.62/x
  3. Step 3: Cross multiply
    859,781.18x = 1,287,705.06 × 410,817.62
  4. Step 4: Simplify right side
    859,781.18x = 529,011,931,230.42
  5. Step 5: Solve for x
    x = 529,011,931,230.42/859,781.18
  6. Step 6: Final answer
    x = 615,286.71

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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.