Home / 890,396.28-1,336,032.90-416,999.88

Finding the Fourth Proportional to 890,396.28, 1,336,032.90 and 416,999.88

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Solution

The fourth proportional to 890,396.28, 1,336,032.90 and 416,999.88 is: 625,705.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,396.28 : 1,336,032.90 = 416,999.88 : x
  2. Step 2: Convert to fraction form
    890,396.28/1,336,032.90 = 416,999.88/x
  3. Step 3: Cross multiply
    890,396.28x = 1,336,032.90 × 416,999.88
  4. Step 4: Simplify right side
    890,396.28x = 557,125,558,976.05
  5. Step 5: Solve for x
    x = 557,125,558,976.05/890,396.28
  6. Step 6: Final answer
    x = 625,705.17

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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.