Home / 389,121.90-583,639.05-104,833.44

Finding the Fourth Proportional to 389,121.90, 583,639.05 and 104,833.44

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Solution

The fourth proportional to 389,121.90, 583,639.05 and 104,833.44 is: 157,238.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,121.90 : 583,639.05 = 104,833.44 : x
  2. Step 2: Convert to fraction form
    389,121.90/583,639.05 = 104,833.44/x
  3. Step 3: Cross multiply
    389,121.90x = 583,639.05 × 104,833.44
  4. Step 4: Simplify right side
    389,121.90x = 61,184,889,329.83
  5. Step 5: Solve for x
    x = 61,184,889,329.83/389,121.90
  6. Step 6: Final answer
    x = 157,238.36

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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.