Home / 458,011.37-687,022.89-121,049.11

Finding the Fourth Proportional to 458,011.37, 687,022.89 and 121,049.11

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Solution

The fourth proportional to 458,011.37, 687,022.89 and 121,049.11 is: 181,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,011.37 : 687,022.89 = 121,049.11 : x
  2. Step 2: Convert to fraction form
    458,011.37/687,022.89 = 121,049.11/x
  3. Step 3: Cross multiply
    458,011.37x = 687,022.89 × 121,049.11
  4. Step 4: Simplify right side
    458,011.37x = 83,163,505,949.01
  5. Step 5: Solve for x
    x = 83,163,505,949.01/458,011.37
  6. Step 6: Final answer
    x = 181,575.20

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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.