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Finding the Fourth Proportional to 1,798,566.91, 2,481,948.30 and 982,798.60

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Solution

The fourth proportional to 1,798,566.91, 2,481,948.30 and 982,798.60 is: 1,356,221.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798,566.91 : 2,481,948.30 = 982,798.60 : x
  2. Step 2: Convert to fraction form
    1,798,566.91/2,481,948.30 = 982,798.60/x
  3. Step 3: Cross multiply
    1,798,566.91x = 2,481,948.30 × 982,798.60
  4. Step 4: Simplify right side
    1,798,566.91x = 2,439,255,314,512.38
  5. Step 5: Solve for x
    x = 2,439,255,314,512.38/1,798,566.91
  6. Step 6: Final answer
    x = 1,356,221.61

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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.