Home / 654,320.12-981,480.42-205,075.86

Finding the Fourth Proportional to 654,320.12, 981,480.42 and 205,075.86

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Solution

The fourth proportional to 654,320.12, 981,480.42 and 205,075.86 is: 307,613.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,320.12 : 981,480.42 = 205,075.86 : x
  2. Step 2: Convert to fraction form
    654,320.12/981,480.42 = 205,075.86/x
  3. Step 3: Cross multiply
    654,320.12x = 981,480.42 × 205,075.86
  4. Step 4: Simplify right side
    654,320.12x = 201,277,941,204.66
  5. Step 5: Solve for x
    x = 201,277,941,204.66/654,320.12
  6. Step 6: Final answer
    x = 307,613.87

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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.