Home / 321,723.40-482,585.10-269,624.20

Finding the Fourth Proportional to 321,723.40, 482,585.10 and 269,624.20

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Solution

The fourth proportional to 321,723.40, 482,585.10 and 269,624.20 is: 404,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,723.40 : 482,585.10 = 269,624.20 : x
  2. Step 2: Convert to fraction form
    321,723.40/482,585.10 = 269,624.20/x
  3. Step 3: Cross multiply
    321,723.40x = 482,585.10 × 269,624.20
  4. Step 4: Simplify right side
    321,723.40x = 130,116,621,519.42
  5. Step 5: Solve for x
    x = 130,116,621,519.42/321,723.40
  6. Step 6: Final answer
    x = 404,436.30

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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.