Home / 2,658,853.90-3,987,444.28-861,320.32

Finding the Fourth Proportional to 2,658,853.90, 3,987,444.28 and 861,320.32

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Solution

The fourth proportional to 2,658,853.90, 3,987,444.28 and 861,320.32 is: 1,291,709.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658,853.90 : 3,987,444.28 = 861,320.32 : x
  2. Step 2: Convert to fraction form
    2,658,853.90/3,987,444.28 = 861,320.32/x
  3. Step 3: Cross multiply
    2,658,853.90x = 3,987,444.28 × 861,320.32
  4. Step 4: Simplify right side
    2,658,853.90x = 3,434,466,783,231.77
  5. Step 5: Solve for x
    x = 3,434,466,783,231.77/2,658,853.90
  6. Step 6: Final answer
    x = 1,291,709.48

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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.