Home / 1,279,291.72-1,765,491.78-706,330.12

Finding the Fourth Proportional to 1,279,291.72, 1,765,491.78 and 706,330.12

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Solution

The fourth proportional to 1,279,291.72, 1,765,491.78 and 706,330.12 is: 974,773.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,291.72 : 1,765,491.78 = 706,330.12 : x
  2. Step 2: Convert to fraction form
    1,279,291.72/1,765,491.78 = 706,330.12/x
  3. Step 3: Cross multiply
    1,279,291.72x = 1,765,491.78 × 706,330.12
  4. Step 4: Simplify right side
    1,279,291.72x = 1,247,020,020,826.41
  5. Step 5: Solve for x
    x = 1,247,020,020,826.41/1,279,291.72
  6. Step 6: Final answer
    x = 974,773.78

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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.