Home / 1,309,820.10-1,960,793.55-777,066.90

Finding the Fourth Proportional to 1,309,820.10, 1,960,793.55 and 777,066.90

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Solution

The fourth proportional to 1,309,820.10, 1,960,793.55 and 777,066.90 is: 1,163,264.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,820.10 : 1,960,793.55 = 777,066.90 : x
  2. Step 2: Convert to fraction form
    1,309,820.10/1,960,793.55 = 777,066.90/x
  3. Step 3: Cross multiply
    1,309,820.10x = 1,960,793.55 × 777,066.90
  4. Step 4: Simplify right side
    1,309,820.10x = 1,523,667,765,438.50
  5. Step 5: Solve for x
    x = 1,523,667,765,438.50/1,309,820.10
  6. Step 6: Final answer
    x = 1,163,264.91

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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.