Home / 765,969.75-1,056,878.04-443,660.61

Finding the Fourth Proportional to 765,969.75, 1,056,878.04 and 443,660.61

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Solution

The fourth proportional to 765,969.75, 1,056,878.04 and 443,660.61 is: 612,158.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,969.75 : 1,056,878.04 = 443,660.61 : x
  2. Step 2: Convert to fraction form
    765,969.75/1,056,878.04 = 443,660.61/x
  3. Step 3: Cross multiply
    765,969.75x = 1,056,878.04 × 443,660.61
  4. Step 4: Simplify right side
    765,969.75x = 468,895,155,922.00
  5. Step 5: Solve for x
    x = 468,895,155,922.00/765,969.75
  6. Step 6: Final answer
    x = 612,158.84

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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.