Home / 817,753.45-1,226,629.88-218,699.05

Finding the Fourth Proportional to 817,753.45, 1,226,629.88 and 218,699.05

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Solution

The fourth proportional to 817,753.45, 1,226,629.88 and 218,699.05 is: 328,048.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,753.45 : 1,226,629.88 = 218,699.05 : x
  2. Step 2: Convert to fraction form
    817,753.45/1,226,629.88 = 218,699.05/x
  3. Step 3: Cross multiply
    817,753.45x = 1,226,629.88 × 218,699.05
  4. Step 4: Simplify right side
    817,753.45x = 268,262,790,142.55
  5. Step 5: Solve for x
    x = 268,262,790,142.55/817,753.45
  6. Step 6: Final answer
    x = 328,048.50

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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.