Home / 1,382,042.40-1,907,277.36-770,195.88

Finding the Fourth Proportional to 1,382,042.40, 1,907,277.36 and 770,195.88

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Solution

The fourth proportional to 1,382,042.40, 1,907,277.36 and 770,195.88 is: 1,062,903.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,042.40 : 1,907,277.36 = 770,195.88 : x
  2. Step 2: Convert to fraction form
    1,382,042.40/1,907,277.36 = 770,195.88/x
  3. Step 3: Cross multiply
    1,382,042.40x = 1,907,277.36 × 770,195.88
  4. Step 4: Simplify right side
    1,382,042.40x = 1,468,977,164,689.28
  5. Step 5: Solve for x
    x = 1,468,977,164,689.28/1,382,042.40
  6. Step 6: Final answer
    x = 1,062,903.11

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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.