Home / 768,895.67-1,061,108.24-442,208.90

Finding the Fourth Proportional to 768,895.67, 1,061,108.24 and 442,208.90

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Solution

The fourth proportional to 768,895.67, 1,061,108.24 and 442,208.90 is: 610,266.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,895.67 : 1,061,108.24 = 442,208.90 : x
  2. Step 2: Convert to fraction form
    768,895.67/1,061,108.24 = 442,208.90/x
  3. Step 3: Cross multiply
    768,895.67x = 1,061,108.24 × 442,208.90
  4. Step 4: Simplify right side
    768,895.67x = 469,231,505,380.29
  5. Step 5: Solve for x
    x = 469,231,505,380.29/768,895.67
  6. Step 6: Final answer
    x = 610,266.81

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1.5x scale

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.