Home / 1,098,618.08-1,647,932.40-388,646.72

Finding the Fourth Proportional to 1,098,618.08, 1,647,932.40 and 388,646.72

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Solution

The fourth proportional to 1,098,618.08, 1,647,932.40 and 388,646.72 is: 582,971.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,618.08 : 1,647,932.40 = 388,646.72 : x
  2. Step 2: Convert to fraction form
    1,098,618.08/1,647,932.40 = 388,646.72/x
  3. Step 3: Cross multiply
    1,098,618.08x = 1,647,932.40 × 388,646.72
  4. Step 4: Simplify right side
    1,098,618.08x = 640,463,522,041.73
  5. Step 5: Solve for x
    x = 640,463,522,041.73/1,098,618.08
  6. Step 6: Final answer
    x = 582,971.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.