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Finding the Fourth Proportional to 661,268.58, 912,650.34 and 403,295.27

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Solution

The fourth proportional to 661,268.58, 912,650.34 and 403,295.27 is: 556,608.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,268.58 : 912,650.34 = 403,295.27 : x
  2. Step 2: Convert to fraction form
    661,268.58/912,650.34 = 403,295.27/x
  3. Step 3: Cross multiply
    661,268.58x = 912,650.34 × 403,295.27
  4. Step 4: Simplify right side
    661,268.58x = 368,067,560,722.64
  5. Step 5: Solve for x
    x = 368,067,560,722.64/661,268.58
  6. Step 6: Final answer
    x = 556,608.27

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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.