Home / 2,658,874.70-3,987,475.38-861,341.06

Finding the Fourth Proportional to 2,658,874.70, 3,987,475.38 and 861,341.06

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Solution

The fourth proportional to 2,658,874.70, 3,987,475.38 and 861,341.06 is: 1,291,740.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658,874.70 : 3,987,475.38 = 861,341.06 : x
  2. Step 2: Convert to fraction form
    2,658,874.70/3,987,475.38 = 861,341.06/x
  3. Step 3: Cross multiply
    2,658,874.70x = 3,987,475.38 × 861,341.06
  4. Step 4: Simplify right side
    2,658,874.70x = 3,434,576,270,533.10
  5. Step 5: Solve for x
    x = 3,434,576,270,533.10/2,658,874.70
  6. Step 6: Final answer
    x = 1,291,740.55

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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.