Home / 1,279,088.90-1,765,096.40-706,116.78

Finding the Fourth Proportional to 1,279,088.90, 1,765,096.40 and 706,116.78

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Solution

The fourth proportional to 1,279,088.90, 1,765,096.40 and 706,116.78 is: 974,415.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,088.90 : 1,765,096.40 = 706,116.78 : x
  2. Step 2: Convert to fraction form
    1,279,088.90/1,765,096.40 = 706,116.78/x
  3. Step 3: Cross multiply
    1,279,088.90x = 1,765,096.40 × 706,116.78
  4. Step 4: Simplify right side
    1,279,088.90x = 1,246,364,186,357.59
  5. Step 5: Solve for x
    x = 1,246,364,186,357.59/1,279,088.90
  6. Step 6: Final answer
    x = 974,415.61

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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.