Home / 1,233,935.80-1,702,918.20-690,122.20

Finding the Fourth Proportional to 1,233,935.80, 1,702,918.20 and 690,122.20

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Solution

The fourth proportional to 1,233,935.80, 1,702,918.20 and 690,122.20 is: 952,417.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233,935.80 : 1,702,918.20 = 690,122.20 : x
  2. Step 2: Convert to fraction form
    1,233,935.80/1,702,918.20 = 690,122.20/x
  3. Step 3: Cross multiply
    1,233,935.80x = 1,702,918.20 × 690,122.20
  4. Step 4: Simplify right side
    1,233,935.80x = 1,175,221,654,604.04
  5. Step 5: Solve for x
    x = 1,175,221,654,604.04/1,233,935.80
  6. Step 6: Final answer
    x = 952,417.18

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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.