Home / 654,723.90-981,799.53-330,312.39

Finding the Fourth Proportional to 654,723.90, 981,799.53 and 330,312.39

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Solution

The fourth proportional to 654,723.90, 981,799.53 and 330,312.39 is: 495,324.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,723.90 : 981,799.53 = 330,312.39 : x
  2. Step 2: Convert to fraction form
    654,723.90/981,799.53 = 330,312.39/x
  3. Step 3: Cross multiply
    654,723.90x = 981,799.53 × 330,312.39
  4. Step 4: Simplify right side
    654,723.90x = 324,300,549,274.88
  5. Step 5: Solve for x
    x = 324,300,549,274.88/654,723.90
  6. Step 6: Final answer
    x = 495,324.14

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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.