Home / 692,963.72-1,039,482.84-219,685.98

Finding the Fourth Proportional to 692,963.72, 1,039,482.84 and 219,685.98

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Solution

The fourth proportional to 692,963.72, 1,039,482.84 and 219,685.98 is: 329,540.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,963.72 : 1,039,482.84 = 219,685.98 : x
  2. Step 2: Convert to fraction form
    692,963.72/1,039,482.84 = 219,685.98/x
  3. Step 3: Cross multiply
    692,963.72x = 1,039,482.84 × 219,685.98
  4. Step 4: Simplify right side
    692,963.72x = 228,359,806,398.58
  5. Step 5: Solve for x
    x = 228,359,806,398.58/692,963.72
  6. Step 6: Final answer
    x = 329,540.78

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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.