Home / 389,634.80-584,452.20-310,902.80

Finding the Fourth Proportional to 389,634.80, 584,452.20 and 310,902.80

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Solution

The fourth proportional to 389,634.80, 584,452.20 and 310,902.80 is: 466,354.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,634.80 : 584,452.20 = 310,902.80 : x
  2. Step 2: Convert to fraction form
    389,634.80/584,452.20 = 310,902.80/x
  3. Step 3: Cross multiply
    389,634.80x = 584,452.20 × 310,902.80
  4. Step 4: Simplify right side
    389,634.80x = 181,707,825,446.16
  5. Step 5: Solve for x
    x = 181,707,825,446.16/389,634.80
  6. Step 6: Final answer
    x = 466,354.20

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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.