Home / 1,206,687.90-1,665,281.64-690,603.80

Finding the Fourth Proportional to 1,206,687.90, 1,665,281.64 and 690,603.80

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Solution

The fourth proportional to 1,206,687.90, 1,665,281.64 and 690,603.80 is: 953,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,687.90 : 1,665,281.64 = 690,603.80 : x
  2. Step 2: Convert to fraction form
    1,206,687.90/1,665,281.64 = 690,603.80/x
  3. Step 3: Cross multiply
    1,206,687.90x = 1,665,281.64 × 690,603.80
  4. Step 4: Simplify right side
    1,206,687.90x = 1,150,049,828,654.23
  5. Step 5: Solve for x
    x = 1,150,049,828,654.23/1,206,687.90
  6. Step 6: Final answer
    x = 953,063.20

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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.