Home / 1,007,540.80-1,388,937.48-765,403

Finding the Fourth Proportional to 1,007,540.80, 1,388,937.48 and 765,403

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Solution

The fourth proportional to 1,007,540.80, 1,388,937.48 and 765,403 is: 1,055,140.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,540.80 : 1,388,937.48 = 765,403 : x
  2. Step 2: Convert to fraction form
    1,007,540.80/1,388,937.48 = 765,403/x
  3. Step 3: Cross multiply
    1,007,540.80x = 1,388,937.48 × 765,403
  4. Step 4: Simplify right side
    1,007,540.80x = 1,063,096,914,004.44
  5. Step 5: Solve for x
    x = 1,063,096,914,004.44/1,007,540.80
  6. Step 6: Final answer
    x = 1,055,140.31

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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.