Home / 389,450.30-584,114.70-123,276.20

Finding the Fourth Proportional to 389,450.30, 584,114.70 and 123,276.20

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Solution

The fourth proportional to 389,450.30, 584,114.70 and 123,276.20 is: 184,895.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,450.30 : 584,114.70 = 123,276.20 : x
  2. Step 2: Convert to fraction form
    389,450.30/584,114.70 = 123,276.20/x
  3. Step 3: Cross multiply
    389,450.30x = 584,114.70 × 123,276.20
  4. Step 4: Simplify right side
    389,450.30x = 72,007,440,580.14
  5. Step 5: Solve for x
    x = 72,007,440,580.14/389,450.30
  6. Step 6: Final answer
    x = 184,895.07

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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.