Home / 1,280,387.13-1,766,969.89-707,464.23

Finding the Fourth Proportional to 1,280,387.13, 1,766,969.89 and 707,464.23

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Solution

The fourth proportional to 1,280,387.13, 1,766,969.89 and 707,464.23 is: 976,320.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,387.13 : 1,766,969.89 = 707,464.23 : x
  2. Step 2: Convert to fraction form
    1,280,387.13/1,766,969.89 = 707,464.23/x
  3. Step 3: Cross multiply
    1,280,387.13x = 1,766,969.89 × 707,464.23
  4. Step 4: Simplify right side
    1,280,387.13x = 1,250,067,992,662.03
  5. Step 5: Solve for x
    x = 1,250,067,992,662.03/1,280,387.13
  6. Step 6: Final answer
    x = 976,320.34

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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.