Home / 447,918.18-618,262.17-304,761.27

Finding the Fourth Proportional to 447,918.18, 618,262.17 and 304,761.27

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Solution

The fourth proportional to 447,918.18, 618,262.17 and 304,761.27 is: 420,662.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,918.18 : 618,262.17 = 304,761.27 : x
  2. Step 2: Convert to fraction form
    447,918.18/618,262.17 = 304,761.27/x
  3. Step 3: Cross multiply
    447,918.18x = 618,262.17 × 304,761.27
  4. Step 4: Simplify right side
    447,918.18x = 188,422,361,366.91
  5. Step 5: Solve for x
    x = 188,422,361,366.91/447,918.18
  6. Step 6: Final answer
    x = 420,662.45

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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.