Home / 858,994.20-1,288,491.30-699,561.90

Finding the Fourth Proportional to 858,994.20, 1,288,491.30 and 699,561.90

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Solution

The fourth proportional to 858,994.20, 1,288,491.30 and 699,561.90 is: 1,049,342.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,994.20 : 1,288,491.30 = 699,561.90 : x
  2. Step 2: Convert to fraction form
    858,994.20/1,288,491.30 = 699,561.90/x
  3. Step 3: Cross multiply
    858,994.20x = 1,288,491.30 × 699,561.90
  4. Step 4: Simplify right side
    858,994.20x = 901,379,421,961.47
  5. Step 5: Solve for x
    x = 901,379,421,961.47/858,994.20
  6. Step 6: Final answer
    x = 1,049,342.85

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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.