Home / 389,654.07-584,485.35-136,941.76

Finding the Fourth Proportional to 389,654.07, 584,485.35 and 136,941.76

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Solution

The fourth proportional to 389,654.07, 584,485.35 and 136,941.76 is: 205,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,654.07 : 584,485.35 = 136,941.76 : x
  2. Step 2: Convert to fraction form
    389,654.07/584,485.35 = 136,941.76/x
  3. Step 3: Cross multiply
    389,654.07x = 584,485.35 × 136,941.76
  4. Step 4: Simplify right side
    389,654.07x = 80,040,452,523.22
  5. Step 5: Solve for x
    x = 80,040,452,523.22/389,654.07
  6. Step 6: Final answer
    x = 205,414.13

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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.