Home / 817,713.88-1,226,484.54-218,735.50

Finding the Fourth Proportional to 817,713.88, 1,226,484.54 and 218,735.50

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Solution

The fourth proportional to 817,713.88, 1,226,484.54 and 218,735.50 is: 328,080.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,713.88 : 1,226,484.54 = 218,735.50 : x
  2. Step 2: Convert to fraction form
    817,713.88/1,226,484.54 = 218,735.50/x
  3. Step 3: Cross multiply
    817,713.88x = 1,226,484.54 × 218,735.50
  4. Step 4: Simplify right side
    817,713.88x = 268,275,709,099.17
  5. Step 5: Solve for x
    x = 268,275,709,099.17/817,713.88
  6. Step 6: Final answer
    x = 328,080.17

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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.