Home / 876,934.40-1,315,401.60-285,958.40

Finding the Fourth Proportional to 876,934.40, 1,315,401.60 and 285,958.40

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Solution

The fourth proportional to 876,934.40, 1,315,401.60 and 285,958.40 is: 428,937.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,934.40 : 1,315,401.60 = 285,958.40 : x
  2. Step 2: Convert to fraction form
    876,934.40/1,315,401.60 = 285,958.40/x
  3. Step 3: Cross multiply
    876,934.40x = 1,315,401.60 × 285,958.40
  4. Step 4: Simplify right side
    876,934.40x = 376,150,136,893.44
  5. Step 5: Solve for x
    x = 376,150,136,893.44/876,934.40
  6. Step 6: Final answer
    x = 428,937.60

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Similar ratio
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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.