Home / 409,215.04-564,718.44-239,416.36

Finding the Fourth Proportional to 409,215.04, 564,718.44 and 239,416.36

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Solution

The fourth proportional to 409,215.04, 564,718.44 and 239,416.36 is: 330,395.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,215.04 : 564,718.44 = 239,416.36 : x
  2. Step 2: Convert to fraction form
    409,215.04/564,718.44 = 239,416.36/x
  3. Step 3: Cross multiply
    409,215.04x = 564,718.44 × 239,416.36
  4. Step 4: Simplify right side
    409,215.04x = 135,202,833,329.68
  5. Step 5: Solve for x
    x = 135,202,833,329.68/409,215.04
  6. Step 6: Final answer
    x = 330,395.56

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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.