Home / 654,064.20-981,722.70-338,747.40

Finding the Fourth Proportional to 654,064.20, 981,722.70 and 338,747.40

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Solution

The fourth proportional to 654,064.20, 981,722.70 and 338,747.40 is: 508,445.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,064.20 : 981,722.70 = 338,747.40 : x
  2. Step 2: Convert to fraction form
    654,064.20/981,722.70 = 338,747.40/x
  3. Step 3: Cross multiply
    654,064.20x = 981,722.70 × 338,747.40
  4. Step 4: Simplify right side
    654,064.20x = 332,556,012,145.98
  5. Step 5: Solve for x
    x = 332,556,012,145.98/654,064.20
  6. Step 6: Final answer
    x = 508,445.52

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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.