Home / 687,496.80-1,032,022.80-371,791.20

Finding the Fourth Proportional to 687,496.80, 1,032,022.80 and 371,791.20

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Solution

The fourth proportional to 687,496.80, 1,032,022.80 and 371,791.20 is: 558,107.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,496.80 : 1,032,022.80 = 371,791.20 : x
  2. Step 2: Convert to fraction form
    687,496.80/1,032,022.80 = 371,791.20/x
  3. Step 3: Cross multiply
    687,496.80x = 1,032,022.80 × 371,791.20
  4. Step 4: Simplify right side
    687,496.80x = 383,696,995,239.36
  5. Step 5: Solve for x
    x = 383,696,995,239.36/687,496.80
  6. Step 6: Final answer
    x = 558,107.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.