Home / 890,015.40-1,334,115.90-440,044.20

Finding the Fourth Proportional to 890,015.40, 1,334,115.90 and 440,044.20

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Solution

The fourth proportional to 890,015.40, 1,334,115.90 and 440,044.20 is: 659,617.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,015.40 : 1,334,115.90 = 440,044.20 : x
  2. Step 2: Convert to fraction form
    890,015.40/1,334,115.90 = 440,044.20/x
  3. Step 3: Cross multiply
    890,015.40x = 1,334,115.90 × 440,044.20
  4. Step 4: Simplify right side
    890,015.40x = 587,069,963,922.78
  5. Step 5: Solve for x
    x = 587,069,963,922.78/890,015.40
  6. Step 6: Final answer
    x = 659,617.76

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Double scale
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Similar ratio
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1.5x scale

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.