Home / 1,223,142.03-1,687,992.03-679,280.22

Finding the Fourth Proportional to 1,223,142.03, 1,687,992.03 and 679,280.22

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Solution

The fourth proportional to 1,223,142.03, 1,687,992.03 and 679,280.22 is: 937,437.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,142.03 : 1,687,992.03 = 679,280.22 : x
  2. Step 2: Convert to fraction form
    1,223,142.03/1,687,992.03 = 679,280.22/x
  3. Step 3: Cross multiply
    1,223,142.03x = 1,687,992.03 × 679,280.22
  4. Step 4: Simplify right side
    1,223,142.03x = 1,146,619,597,496.65
  5. Step 5: Solve for x
    x = 1,146,619,597,496.65/1,223,142.03
  6. Step 6: Final answer
    x = 937,437.82

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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.