Home / 769,751.88-1,148,991.12-678,851.40

Finding the Fourth Proportional to 769,751.88, 1,148,991.12 and 678,851.40

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Solution

The fourth proportional to 769,751.88, 1,148,991.12 and 678,851.40 is: 1,013,306.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,751.88 : 1,148,991.12 = 678,851.40 : x
  2. Step 2: Convert to fraction form
    769,751.88/1,148,991.12 = 678,851.40/x
  3. Step 3: Cross multiply
    769,751.88x = 1,148,991.12 × 678,851.40
  4. Step 4: Simplify right side
    769,751.88x = 779,994,230,399.57
  5. Step 5: Solve for x
    x = 779,994,230,399.57/769,751.88
  6. Step 6: Final answer
    x = 1,013,306.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.