Home / 654,324.12-981,495.90-431,114.04

Finding the Fourth Proportional to 654,324.12, 981,495.90 and 431,114.04

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Solution

The fourth proportional to 654,324.12, 981,495.90 and 431,114.04 is: 646,677.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,324.12 : 981,495.90 = 431,114.04 : x
  2. Step 2: Convert to fraction form
    654,324.12/981,495.90 = 431,114.04/x
  3. Step 3: Cross multiply
    654,324.12x = 981,495.90 × 431,114.04
  4. Step 4: Simplify right side
    654,324.12x = 423,136,662,692.44
  5. Step 5: Solve for x
    x = 423,136,662,692.44/654,324.12
  6. Step 6: Final answer
    x = 646,677.46

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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.