Home / 2,658,847.15-3,987,434.16-861,313.58

Finding the Fourth Proportional to 2,658,847.15, 3,987,434.16 and 861,313.58

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Solution

The fourth proportional to 2,658,847.15, 3,987,434.16 and 861,313.58 is: 1,291,699.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658,847.15 : 3,987,434.16 = 861,313.58 : x
  2. Step 2: Convert to fraction form
    2,658,847.15/3,987,434.16 = 861,313.58/x
  3. Step 3: Cross multiply
    2,658,847.15x = 3,987,434.16 × 861,313.58
  4. Step 4: Simplify right side
    2,658,847.15x = 3,434,431,171,426.72
  5. Step 5: Solve for x
    x = 3,434,431,171,426.72/2,658,847.15
  6. Step 6: Final answer
    x = 1,291,699.36

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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.