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Finding the Fourth Proportional to 660,697.26, 911,826.03 and 370,357.97

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Solution

The fourth proportional to 660,697.26, 911,826.03 and 370,357.97 is: 511,129.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,697.26 : 911,826.03 = 370,357.97 : x
  2. Step 2: Convert to fraction form
    660,697.26/911,826.03 = 370,357.97/x
  3. Step 3: Cross multiply
    660,697.26x = 911,826.03 × 370,357.97
  4. Step 4: Simplify right side
    660,697.26x = 337,702,032,904.83
  5. Step 5: Solve for x
    x = 337,702,032,904.83/660,697.26
  6. Step 6: Final answer
    x = 511,129.76

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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.