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Finding the Fourth Proportional to 654,393.35, 981,602.45 and 205,104.30

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Solution

The fourth proportional to 654,393.35, 981,602.45 and 205,104.30 is: 307,660.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,393.35 : 981,602.45 = 205,104.30 : x
  2. Step 2: Convert to fraction form
    654,393.35/981,602.45 = 205,104.30/x
  3. Step 3: Cross multiply
    654,393.35x = 981,602.45 × 205,104.30
  4. Step 4: Simplify right side
    654,393.35x = 201,330,882,360.01
  5. Step 5: Solve for x
    x = 201,330,882,360.01/654,393.35
  6. Step 6: Final answer
    x = 307,660.35

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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.