Home / 800,005.14-1,200,008.79-326,690.46

Finding the Fourth Proportional to 800,005.14, 1,200,008.79 and 326,690.46

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Solution

The fourth proportional to 800,005.14, 1,200,008.79 and 326,690.46 is: 490,036.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,005.14 : 1,200,008.79 = 326,690.46 : x
  2. Step 2: Convert to fraction form
    800,005.14/1,200,008.79 = 326,690.46/x
  3. Step 3: Cross multiply
    800,005.14x = 1,200,008.79 × 326,690.46
  4. Step 4: Simplify right side
    800,005.14x = 392,031,423,609.14
  5. Step 5: Solve for x
    x = 392,031,423,609.14/800,005.14
  6. Step 6: Final answer
    x = 490,036.13

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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.