Home / 876,874.20-1,315,311.30-827,885.40

Finding the Fourth Proportional to 876,874.20, 1,315,311.30 and 827,885.40

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Solution

The fourth proportional to 876,874.20, 1,315,311.30 and 827,885.40 is: 1,241,828.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,874.20 : 1,315,311.30 = 827,885.40 : x
  2. Step 2: Convert to fraction form
    876,874.20/1,315,311.30 = 827,885.40/x
  3. Step 3: Cross multiply
    876,874.20x = 1,315,311.30 × 827,885.40
  4. Step 4: Simplify right side
    876,874.20x = 1,088,927,021,725.02
  5. Step 5: Solve for x
    x = 1,088,927,021,725.02/876,874.20
  6. Step 6: Final answer
    x = 1,241,828.10

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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.