Home / 840,655.80-1,260,983.70-775,701.90

Finding the Fourth Proportional to 840,655.80, 1,260,983.70 and 775,701.90

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Solution

The fourth proportional to 840,655.80, 1,260,983.70 and 775,701.90 is: 1,163,552.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,655.80 : 1,260,983.70 = 775,701.90 : x
  2. Step 2: Convert to fraction form
    840,655.80/1,260,983.70 = 775,701.90/x
  3. Step 3: Cross multiply
    840,655.80x = 1,260,983.70 × 775,701.90
  4. Step 4: Simplify right side
    840,655.80x = 978,147,451,959.03
  5. Step 5: Solve for x
    x = 978,147,451,959.03/840,655.80
  6. Step 6: Final answer
    x = 1,163,552.85

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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.