Home / 965,712.80-1,448,828.40-861,255.20

Finding the Fourth Proportional to 965,712.80, 1,448,828.40 and 861,255.20

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Solution

The fourth proportional to 965,712.80, 1,448,828.40 and 861,255.20 is: 1,292,113.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,712.80 : 1,448,828.40 = 861,255.20 : x
  2. Step 2: Convert to fraction form
    965,712.80/1,448,828.40 = 861,255.20/x
  3. Step 3: Cross multiply
    965,712.80x = 1,448,828.40 × 861,255.20
  4. Step 4: Simplify right side
    965,712.80x = 1,247,810,993,407.68
  5. Step 5: Solve for x
    x = 1,247,810,993,407.68/965,712.80
  6. Step 6: Final answer
    x = 1,292,113.96

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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.