Home / 1,246,370.12-1,871,215.66-842,917.72

Finding the Fourth Proportional to 1,246,370.12, 1,871,215.66 and 842,917.72

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Solution

The fourth proportional to 1,246,370.12, 1,871,215.66 and 842,917.72 is: 1,265,499.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,370.12 : 1,871,215.66 = 842,917.72 : x
  2. Step 2: Convert to fraction form
    1,246,370.12/1,871,215.66 = 842,917.72/x
  3. Step 3: Cross multiply
    1,246,370.12x = 1,871,215.66 × 842,917.72
  4. Step 4: Simplify right side
    1,246,370.12x = 1,577,280,837,755.50
  5. Step 5: Solve for x
    x = 1,577,280,837,755.50/1,246,370.12
  6. Step 6: Final answer
    x = 1,265,499.56

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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.