Home / 1,341,982.49-1,851,986.77-769,133.21

Finding the Fourth Proportional to 1,341,982.49, 1,851,986.77 and 769,133.21

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Solution

The fourth proportional to 1,341,982.49, 1,851,986.77 and 769,133.21 is: 1,061,433.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341,982.49 : 1,851,986.77 = 769,133.21 : x
  2. Step 2: Convert to fraction form
    1,341,982.49/1,851,986.77 = 769,133.21/x
  3. Step 3: Cross multiply
    1,341,982.49x = 1,851,986.77 × 769,133.21
  4. Step 4: Simplify right side
    1,341,982.49x = 1,424,424,518,104.86
  5. Step 5: Solve for x
    x = 1,424,424,518,104.86/1,341,982.49
  6. Step 6: Final answer
    x = 1,061,433.02

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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.