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Finding the Fourth Proportional to 507,872.97, 700,872.55 and 278,452.22

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Solution

The fourth proportional to 507,872.97, 700,872.55 and 278,452.22 is: 384,268.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,872.97 : 700,872.55 = 278,452.22 : x
  2. Step 2: Convert to fraction form
    507,872.97/700,872.55 = 278,452.22/x
  3. Step 3: Cross multiply
    507,872.97x = 700,872.55 × 278,452.22
  4. Step 4: Simplify right side
    507,872.97x = 195,159,513,284.07
  5. Step 5: Solve for x
    x = 195,159,513,284.07/507,872.97
  6. Step 6: Final answer
    x = 384,268.36

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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.