Home / 519,785.11-717,309.44-304,928.83

Finding the Fourth Proportional to 519,785.11, 717,309.44 and 304,928.83

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Solution

The fourth proportional to 519,785.11, 717,309.44 and 304,928.83 is: 420,805.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,785.11 : 717,309.44 = 304,928.83 : x
  2. Step 2: Convert to fraction form
    519,785.11/717,309.44 = 304,928.83/x
  3. Step 3: Cross multiply
    519,785.11x = 717,309.44 × 304,928.83
  4. Step 4: Simplify right side
    519,785.11x = 218,728,326,762.51
  5. Step 5: Solve for x
    x = 218,728,326,762.51/519,785.11
  6. Step 6: Final answer
    x = 420,805.30

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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.