Home / 780,695.10-1,171,043.04-219,729.60

Finding the Fourth Proportional to 780,695.10, 1,171,043.04 and 219,729.60

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Solution

The fourth proportional to 780,695.10, 1,171,043.04 and 219,729.60 is: 329,594.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,695.10 : 1,171,043.04 = 219,729.60 : x
  2. Step 2: Convert to fraction form
    780,695.10/1,171,043.04 = 219,729.60/x
  3. Step 3: Cross multiply
    780,695.10x = 1,171,043.04 × 219,729.60
  4. Step 4: Simplify right side
    780,695.10x = 257,312,818,761.98
  5. Step 5: Solve for x
    x = 257,312,818,761.98/780,695.10
  6. Step 6: Final answer
    x = 329,594.51

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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.