Home / 518,973.24-777,991.38-186,471.48

Finding the Fourth Proportional to 518,973.24, 777,991.38 and 186,471.48

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Solution

The fourth proportional to 518,973.24, 777,991.38 and 186,471.48 is: 279,538.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,973.24 : 777,991.38 = 186,471.48 : x
  2. Step 2: Convert to fraction form
    518,973.24/777,991.38 = 186,471.48/x
  3. Step 3: Cross multiply
    518,973.24x = 777,991.38 × 186,471.48
  4. Step 4: Simplify right side
    518,973.24x = 145,073,204,055.84
  5. Step 5: Solve for x
    x = 145,073,204,055.84/518,973.24
  6. Step 6: Final answer
    x = 279,538.89

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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.