Home / 1,279,376.80-1,765,532.40-706,412.32

Finding the Fourth Proportional to 1,279,376.80, 1,765,532.40 and 706,412.32

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Solution

The fourth proportional to 1,279,376.80, 1,765,532.40 and 706,412.32 is: 974,844.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,376.80 : 1,765,532.40 = 706,412.32 : x
  2. Step 2: Convert to fraction form
    1,279,376.80/1,765,532.40 = 706,412.32/x
  3. Step 3: Cross multiply
    1,279,376.80x = 1,765,532.40 × 706,412.32
  4. Step 4: Simplify right side
    1,279,376.80x = 1,247,193,838,719.17
  5. Step 5: Solve for x
    x = 1,247,193,838,719.17/1,279,376.80
  6. Step 6: Final answer
    x = 974,844.81

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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.