Home / 890,915.70-1,336,373.55-418,523.70

Finding the Fourth Proportional to 890,915.70, 1,336,373.55 and 418,523.70

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Solution

The fourth proportional to 890,915.70, 1,336,373.55 and 418,523.70 is: 627,785.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,915.70 : 1,336,373.55 = 418,523.70 : x
  2. Step 2: Convert to fraction form
    890,915.70/1,336,373.55 = 418,523.70/x
  3. Step 3: Cross multiply
    890,915.70x = 1,336,373.55 × 418,523.70
  4. Step 4: Simplify right side
    890,915.70x = 559,304,002,728.14
  5. Step 5: Solve for x
    x = 559,304,002,728.14/890,915.70
  6. Step 6: Final answer
    x = 627,785.55

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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.