Home / 1,341,977.61-1,851,980.04-769,128.33

Finding the Fourth Proportional to 1,341,977.61, 1,851,980.04 and 769,128.33

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Solution

The fourth proportional to 1,341,977.61, 1,851,980.04 and 769,128.33 is: 1,061,426.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341,977.61 : 1,851,980.04 = 769,128.33 : x
  2. Step 2: Convert to fraction form
    1,341,977.61/1,851,980.04 = 769,128.33/x
  3. Step 3: Cross multiply
    1,341,977.61x = 1,851,980.04 × 769,128.33
  4. Step 4: Simplify right side
    1,341,977.61x = 1,424,410,315,358.53
  5. Step 5: Solve for x
    x = 1,424,410,315,358.53/1,341,977.61
  6. Step 6: Final answer
    x = 1,061,426.29

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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.