Home / 389,621.80-584,259.90-179,324.20

Finding the Fourth Proportional to 389,621.80, 584,259.90 and 179,324.20

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Solution

The fourth proportional to 389,621.80, 584,259.90 and 179,324.20 is: 268,906.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,621.80 : 584,259.90 = 179,324.20 : x
  2. Step 2: Convert to fraction form
    389,621.80/584,259.90 = 179,324.20/x
  3. Step 3: Cross multiply
    389,621.80x = 584,259.90 × 179,324.20
  4. Step 4: Simplify right side
    389,621.80x = 104,771,939,159.58
  5. Step 5: Solve for x
    x = 104,771,939,159.58/389,621.80
  6. Step 6: Final answer
    x = 268,906.77

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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.