Home / 709,815.80-1,065,015.30-260,751.80

Finding the Fourth Proportional to 709,815.80, 1,065,015.30 and 260,751.80

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Solution

The fourth proportional to 709,815.80, 1,065,015.30 and 260,751.80 is: 391,234.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,815.80 : 1,065,015.30 = 260,751.80 : x
  2. Step 2: Convert to fraction form
    709,815.80/1,065,015.30 = 260,751.80/x
  3. Step 3: Cross multiply
    709,815.80x = 1,065,015.30 × 260,751.80
  4. Step 4: Simplify right side
    709,815.80x = 277,704,656,502.54
  5. Step 5: Solve for x
    x = 277,704,656,502.54/709,815.80
  6. Step 6: Final answer
    x = 391,234.82

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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.