Home / 1,007,534.11-1,388,928.22-765,396.30

Finding the Fourth Proportional to 1,007,534.11, 1,388,928.22 and 765,396.30

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Solution

The fourth proportional to 1,007,534.11, 1,388,928.22 and 765,396.30 is: 1,055,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,534.11 : 1,388,928.22 = 765,396.30 : x
  2. Step 2: Convert to fraction form
    1,007,534.11/1,388,928.22 = 765,396.30/x
  3. Step 3: Cross multiply
    1,007,534.11x = 1,388,928.22 × 765,396.30
  4. Step 4: Simplify right side
    1,007,534.11x = 1,063,080,520,553.59
  5. Step 5: Solve for x
    x = 1,063,080,520,553.59/1,007,534.11
  6. Step 6: Final answer
    x = 1,055,131.05

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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.