Home / 389,060.87-583,542.09-104,774.11

Finding the Fourth Proportional to 389,060.87, 583,542.09 and 104,774.11

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Solution

The fourth proportional to 389,060.87, 583,542.09 and 104,774.11 is: 157,147.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,060.87 : 583,542.09 = 104,774.11 : x
  2. Step 2: Convert to fraction form
    389,060.87/583,542.09 = 104,774.11/x
  3. Step 3: Cross multiply
    389,060.87x = 583,542.09 × 104,774.11
  4. Step 4: Simplify right side
    389,060.87x = 61,140,101,668.43
  5. Step 5: Solve for x
    x = 61,140,101,668.43/389,060.87
  6. Step 6: Final answer
    x = 157,147.91

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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.