Home / 455,020.95-627,923.97-251,080.47

Finding the Fourth Proportional to 455,020.95, 627,923.97 and 251,080.47

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Solution

The fourth proportional to 455,020.95, 627,923.97 and 251,080.47 is: 346,488.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,020.95 : 627,923.97 = 251,080.47 : x
  2. Step 2: Convert to fraction form
    455,020.95/627,923.97 = 251,080.47/x
  3. Step 3: Cross multiply
    455,020.95x = 627,923.97 × 251,080.47
  4. Step 4: Simplify right side
    455,020.95x = 157,659,446,453.42
  5. Step 5: Solve for x
    x = 157,659,446,453.42/455,020.95
  6. Step 6: Final answer
    x = 346,488.32

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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.