Home / 759,080.34-1,138,819.89-272,811.56

Finding the Fourth Proportional to 759,080.34, 1,138,819.89 and 272,811.56

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Solution

The fourth proportional to 759,080.34, 1,138,819.89 and 272,811.56 is: 409,288.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,080.34 : 1,138,819.89 = 272,811.56 : x
  2. Step 2: Convert to fraction form
    759,080.34/1,138,819.89 = 272,811.56/x
  3. Step 3: Cross multiply
    759,080.34x = 1,138,819.89 × 272,811.56
  4. Step 4: Simplify right side
    759,080.34x = 310,683,223,691.77
  5. Step 5: Solve for x
    x = 310,683,223,691.77/759,080.34
  6. Step 6: Final answer
    x = 409,288.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.