Home / 1,086,863.20-1,630,294.80-806,927.20

Finding the Fourth Proportional to 1,086,863.20, 1,630,294.80 and 806,927.20

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Solution

The fourth proportional to 1,086,863.20, 1,630,294.80 and 806,927.20 is: 1,210,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,863.20 : 1,630,294.80 = 806,927.20 : x
  2. Step 2: Convert to fraction form
    1,086,863.20/1,630,294.80 = 806,927.20/x
  3. Step 3: Cross multiply
    1,086,863.20x = 1,630,294.80 × 806,927.20
  4. Step 4: Simplify right side
    1,086,863.20x = 1,315,529,218,138.56
  5. Step 5: Solve for x
    x = 1,315,529,218,138.56/1,086,863.20
  6. Step 6: Final answer
    x = 1,210,390.80

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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.