Home / 1,279,647.95-1,765,957.75-756,806.76

Finding the Fourth Proportional to 1,279,647.95, 1,765,957.75 and 756,806.76

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Solution

The fourth proportional to 1,279,647.95, 1,765,957.75 and 756,806.76 is: 1,044,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,647.95 : 1,765,957.75 = 756,806.76 : x
  2. Step 2: Convert to fraction form
    1,279,647.95/1,765,957.75 = 756,806.76/x
  3. Step 3: Cross multiply
    1,279,647.95x = 1,765,957.75 × 756,806.76
  4. Step 4: Simplify right side
    1,279,647.95x = 1,336,488,761,182.37
  5. Step 5: Solve for x
    x = 1,336,488,761,182.37/1,279,647.95
  6. Step 6: Final answer
    x = 1,044,419.10

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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.