Home / 800,029.71-1,200,045.75-326,715.09

Finding the Fourth Proportional to 800,029.71, 1,200,045.75 and 326,715.09

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Solution

The fourth proportional to 800,029.71, 1,200,045.75 and 326,715.09 is: 490,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,029.71 : 1,200,045.75 = 326,715.09 : x
  2. Step 2: Convert to fraction form
    800,029.71/1,200,045.75 = 326,715.09/x
  3. Step 3: Cross multiply
    800,029.71x = 1,200,045.75 × 326,715.09
  4. Step 4: Simplify right side
    800,029.71x = 392,073,049,490.01
  5. Step 5: Solve for x
    x = 392,073,049,490.01/800,029.71
  6. Step 6: Final answer
    x = 490,073.11

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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.