Home / 769,969.80-1,154,954.70-451,105.20

Finding the Fourth Proportional to 769,969.80, 1,154,954.70 and 451,105.20

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Solution

The fourth proportional to 769,969.80, 1,154,954.70 and 451,105.20 is: 676,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,969.80 : 1,154,954.70 = 451,105.20 : x
  2. Step 2: Convert to fraction form
    769,969.80/1,154,954.70 = 451,105.20/x
  3. Step 3: Cross multiply
    769,969.80x = 1,154,954.70 × 451,105.20
  4. Step 4: Simplify right side
    769,969.80x = 521,006,070,934.44
  5. Step 5: Solve for x
    x = 521,006,070,934.44/769,969.80
  6. Step 6: Final answer
    x = 676,657.80

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1.5x scale

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.