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Finding the Fourth Proportional to 660,351.83, 911,288.88 and 373,927.73

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Solution

The fourth proportional to 660,351.83, 911,288.88 and 373,927.73 is: 516,022.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,351.83 : 911,288.88 = 373,927.73 : x
  2. Step 2: Convert to fraction form
    660,351.83/911,288.88 = 373,927.73/x
  3. Step 3: Cross multiply
    660,351.83x = 911,288.88 × 373,927.73
  4. Step 4: Simplify right side
    660,351.83x = 340,756,177,716.20
  5. Step 5: Solve for x
    x = 340,756,177,716.20/660,351.83
  6. Step 6: Final answer
    x = 516,022.16

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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.