Home / 389,450.80-584,115.45-123,276.70

Finding the Fourth Proportional to 389,450.80, 584,115.45 and 123,276.70

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Solution

The fourth proportional to 389,450.80, 584,115.45 and 123,276.70 is: 184,895.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,450.80 : 584,115.45 = 123,276.70 : x
  2. Step 2: Convert to fraction form
    389,450.80/584,115.45 = 123,276.70/x
  3. Step 3: Cross multiply
    389,450.80x = 584,115.45 × 123,276.70
  4. Step 4: Simplify right side
    389,450.80x = 72,007,825,095.02
  5. Step 5: Solve for x
    x = 72,007,825,095.02/389,450.80
  6. Step 6: Final answer
    x = 184,895.82

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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.