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Finding the Fourth Proportional to 715,268.07, 987,164.42 and 461,357.37

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Solution

The fourth proportional to 715,268.07, 987,164.42 and 461,357.37 is: 636,734.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,268.07 : 987,164.42 = 461,357.37 : x
  2. Step 2: Convert to fraction form
    715,268.07/987,164.42 = 461,357.37/x
  3. Step 3: Cross multiply
    715,268.07x = 987,164.42 × 461,357.37
  4. Step 4: Simplify right side
    715,268.07x = 455,435,578,261.99
  5. Step 5: Solve for x
    x = 455,435,578,261.99/715,268.07
  6. Step 6: Final answer
    x = 636,734.11

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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.