Home / 692,393.40-1,038,687.30-219,029.40

Finding the Fourth Proportional to 692,393.40, 1,038,687.30 and 219,029.40

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Solution

The fourth proportional to 692,393.40, 1,038,687.30 and 219,029.40 is: 328,574.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,393.40 : 1,038,687.30 = 219,029.40 : x
  2. Step 2: Convert to fraction form
    692,393.40/1,038,687.30 = 219,029.40/x
  3. Step 3: Cross multiply
    692,393.40x = 1,038,687.30 × 219,029.40
  4. Step 4: Simplify right side
    692,393.40x = 227,503,056,106.62
  5. Step 5: Solve for x
    x = 227,503,056,106.62/692,393.40
  6. Step 6: Final answer
    x = 328,574.85

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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.