Home / 409,791.36-565,529.28-240,001.92

Finding the Fourth Proportional to 409,791.36, 565,529.28 and 240,001.92

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Solution

The fourth proportional to 409,791.36, 565,529.28 and 240,001.92 is: 331,212.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,791.36 : 565,529.28 = 240,001.92 : x
  2. Step 2: Convert to fraction form
    409,791.36/565,529.28 = 240,001.92/x
  3. Step 3: Cross multiply
    409,791.36x = 565,529.28 × 240,001.92
  4. Step 4: Simplify right side
    409,791.36x = 135,728,113,016.22
  5. Step 5: Solve for x
    x = 135,728,113,016.22/409,791.36
  6. Step 6: Final answer
    x = 331,212.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.