Home / 389,911.23-584,887.64-123,693.03

Finding the Fourth Proportional to 389,911.23, 584,887.64 and 123,693.03

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Solution

The fourth proportional to 389,911.23, 584,887.64 and 123,693.03 is: 185,546.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,911.23 : 584,887.64 = 123,693.03 : x
  2. Step 2: Convert to fraction form
    389,911.23/584,887.64 = 123,693.03/x
  3. Step 3: Cross multiply
    389,911.23x = 584,887.64 × 123,693.03
  4. Step 4: Simplify right side
    389,911.23x = 72,346,523,782.68
  5. Step 5: Solve for x
    x = 72,346,523,782.68/389,911.23
  6. Step 6: Final answer
    x = 185,546.14

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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.