Home / 890,298.43-1,336,781.71-770,724.20

Finding the Fourth Proportional to 890,298.43, 1,336,781.71 and 770,724.20

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Solution

The fourth proportional to 890,298.43, 1,336,781.71 and 770,724.20 is: 1,157,241.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,298.43 : 1,336,781.71 = 770,724.20 : x
  2. Step 2: Convert to fraction form
    890,298.43/1,336,781.71 = 770,724.20/x
  3. Step 3: Cross multiply
    890,298.43x = 1,336,781.71 × 770,724.20
  4. Step 4: Simplify right side
    890,298.43x = 1,030,290,010,160.76
  5. Step 5: Solve for x
    x = 1,030,290,010,160.76/890,298.43
  6. Step 6: Final answer
    x = 1,157,241.19

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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.