Home / 1,178,679.12-1,626,150.52-771,013.68

Finding the Fourth Proportional to 1,178,679.12, 1,626,150.52 and 771,013.68

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Solution

The fourth proportional to 1,178,679.12, 1,626,150.52 and 771,013.68 is: 1,063,719.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,679.12 : 1,626,150.52 = 771,013.68 : x
  2. Step 2: Convert to fraction form
    1,178,679.12/1,626,150.52 = 771,013.68/x
  3. Step 3: Cross multiply
    1,178,679.12x = 1,626,150.52 × 771,013.68
  4. Step 4: Simplify right side
    1,178,679.12x = 1,253,784,296,659.11
  5. Step 5: Solve for x
    x = 1,253,784,296,659.11/1,178,679.12
  6. Step 6: Final answer
    x = 1,063,719.78

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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.