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Finding the Fourth Proportional to 814,483, 1,221,899.98 and 245,816.50

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Solution

The fourth proportional to 814,483, 1,221,899.98 and 245,816.50 is: 368,777.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,483 : 1,221,899.98 = 245,816.50 : x
  2. Step 2: Convert to fraction form
    814,483/1,221,899.98 = 245,816.50/x
  3. Step 3: Cross multiply
    814,483x = 1,221,899.98 × 245,816.50
  4. Step 4: Simplify right side
    814,483x = 300,363,176,433.67
  5. Step 5: Solve for x
    x = 300,363,176,433.67/814,483
  6. Step 6: Final answer
    x = 368,777.71

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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.