Home / 1,279,279.02-1,765,432.60-706,355.48

Finding the Fourth Proportional to 1,279,279.02, 1,765,432.60 and 706,355.48

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Solution

The fourth proportional to 1,279,279.02, 1,765,432.60 and 706,355.48 is: 974,785.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,279.02 : 1,765,432.60 = 706,355.48 : x
  2. Step 2: Convert to fraction form
    1,279,279.02/1,765,432.60 = 706,355.48/x
  3. Step 3: Cross multiply
    1,279,279.02x = 1,765,432.60 × 706,355.48
  4. Step 4: Simplify right side
    1,279,279.02x = 1,247,022,991,580.65
  5. Step 5: Solve for x
    x = 1,247,022,991,580.65/1,279,279.02
  6. Step 6: Final answer
    x = 974,785.78

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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.