Home / 447,619.50-618,239.79-296,454.06

Finding the Fourth Proportional to 447,619.50, 618,239.79 and 296,454.06

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Solution

The fourth proportional to 447,619.50, 618,239.79 and 296,454.06 is: 409,454.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,619.50 : 618,239.79 = 296,454.06 : x
  2. Step 2: Convert to fraction form
    447,619.50/618,239.79 = 296,454.06/x
  3. Step 3: Cross multiply
    447,619.50x = 618,239.79 × 296,454.06
  4. Step 4: Simplify right side
    447,619.50x = 183,279,695,799.05
  5. Step 5: Solve for x
    x = 183,279,695,799.05/447,619.50
  6. Step 6: Final answer
    x = 409,454.23

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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.