Home / 1,095,885-1,512,215.28-687,856.32

Finding the Fourth Proportional to 1,095,885, 1,512,215.28 and 687,856.32

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Solution

The fourth proportional to 1,095,885, 1,512,215.28 and 687,856.32 is: 949,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,885 : 1,512,215.28 = 687,856.32 : x
  2. Step 2: Convert to fraction form
    1,095,885/1,512,215.28 = 687,856.32/x
  3. Step 3: Cross multiply
    1,095,885x = 1,512,215.28 × 687,856.32
  4. Step 4: Simplify right side
    1,095,885x = 1,040,186,837,548.57
  5. Step 5: Solve for x
    x = 1,040,186,837,548.57/1,095,885
  6. Step 6: Final answer
    x = 949,175.18

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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.