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Finding the Fourth Proportional to 536,439.68, 804,660.12 and 137,080.79

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Solution

The fourth proportional to 536,439.68, 804,660.12 and 137,080.79 is: 205,621.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,439.68 : 804,660.12 = 137,080.79 : x
  2. Step 2: Convert to fraction form
    536,439.68/804,660.12 = 137,080.79/x
  3. Step 3: Cross multiply
    536,439.68x = 804,660.12 × 137,080.79
  4. Step 4: Simplify right side
    536,439.68x = 110,303,440,907.79
  5. Step 5: Solve for x
    x = 110,303,440,907.79/536,439.68
  6. Step 6: Final answer
    x = 205,621.33

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Similar ratio
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1.5x scale

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.