Home / 1,065,215.38-1,469,994.88-581,780.55

Finding the Fourth Proportional to 1,065,215.38, 1,469,994.88 and 581,780.55

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Solution

The fourth proportional to 1,065,215.38, 1,469,994.88 and 581,780.55 is: 802,855.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,215.38 : 1,469,994.88 = 581,780.55 : x
  2. Step 2: Convert to fraction form
    1,065,215.38/1,469,994.88 = 581,780.55/x
  3. Step 3: Cross multiply
    1,065,215.38x = 1,469,994.88 × 581,780.55
  4. Step 4: Simplify right side
    1,065,215.38x = 855,214,419,524.71
  5. Step 5: Solve for x
    x = 855,214,419,524.71/1,065,215.38
  6. Step 6: Final answer
    x = 802,855.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.