Home / 389,012.12-583,616.60-108,529.16

Finding the Fourth Proportional to 389,012.12, 583,616.60 and 108,529.16

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Solution

The fourth proportional to 389,012.12, 583,616.60 and 108,529.16 is: 162,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,012.12 : 583,616.60 = 108,529.16 : x
  2. Step 2: Convert to fraction form
    389,012.12/583,616.60 = 108,529.16/x
  3. Step 3: Cross multiply
    389,012.12x = 583,616.60 × 108,529.16
  4. Step 4: Simplify right side
    389,012.12x = 63,339,419,360.06
  5. Step 5: Solve for x
    x = 63,339,419,360.06/389,012.12
  6. Step 6: Final answer
    x = 162,821.20

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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.