Home / 817,969.80-1,226,954.70-219,023.40

Finding the Fourth Proportional to 817,969.80, 1,226,954.70 and 219,023.40

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Solution

The fourth proportional to 817,969.80, 1,226,954.70 and 219,023.40 is: 328,535.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,969.80 : 1,226,954.70 = 219,023.40 : x
  2. Step 2: Convert to fraction form
    817,969.80/1,226,954.70 = 219,023.40/x
  3. Step 3: Cross multiply
    817,969.80x = 1,226,954.70 × 219,023.40
  4. Step 4: Simplify right side
    817,969.80x = 268,731,790,039.98
  5. Step 5: Solve for x
    x = 268,731,790,039.98/817,969.80
  6. Step 6: Final answer
    x = 328,535.10

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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.