Home / 389,113.20-583,669.80-274,951.80

Finding the Fourth Proportional to 389,113.20, 583,669.80 and 274,951.80

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Solution

The fourth proportional to 389,113.20, 583,669.80 and 274,951.80 is: 412,427.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,113.20 : 583,669.80 = 274,951.80 : x
  2. Step 2: Convert to fraction form
    389,113.20/583,669.80 = 274,951.80/x
  3. Step 3: Cross multiply
    389,113.20x = 583,669.80 × 274,951.80
  4. Step 4: Simplify right side
    389,113.20x = 160,481,062,115.64
  5. Step 5: Solve for x
    x = 160,481,062,115.64/389,113.20
  6. Step 6: Final answer
    x = 412,427.70

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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.