Home / 521,977.32-720,316.80-304,172.37

Finding the Fourth Proportional to 521,977.32, 720,316.80 and 304,172.37

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Solution

The fourth proportional to 521,977.32, 720,316.80 and 304,172.37 is: 419,750.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,977.32 : 720,316.80 = 304,172.37 : x
  2. Step 2: Convert to fraction form
    521,977.32/720,316.80 = 304,172.37/x
  3. Step 3: Cross multiply
    521,977.32x = 720,316.80 × 304,172.37
  4. Step 4: Simplify right side
    521,977.32x = 219,100,468,206.82
  5. Step 5: Solve for x
    x = 219,100,468,206.82/521,977.32
  6. Step 6: Final answer
    x = 419,750.94

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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.