Home / 654,286.20-981,720.90-299,117.40

Finding the Fourth Proportional to 654,286.20, 981,720.90 and 299,117.40

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Solution

The fourth proportional to 654,286.20, 981,720.90 and 299,117.40 is: 448,809.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,286.20 : 981,720.90 = 299,117.40 : x
  2. Step 2: Convert to fraction form
    654,286.20/981,720.90 = 299,117.40/x
  3. Step 3: Cross multiply
    654,286.20x = 981,720.90 × 299,117.40
  4. Step 4: Simplify right side
    654,286.20x = 293,649,803,133.66
  5. Step 5: Solve for x
    x = 293,649,803,133.66/654,286.20
  6. Step 6: Final answer
    x = 448,809.41

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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.