Home / 692,133.20-1,038,005.40-218,963.60

Finding the Fourth Proportional to 692,133.20, 1,038,005.40 and 218,963.60

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Solution

The fourth proportional to 692,133.20, 1,038,005.40 and 218,963.60 is: 328,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,133.20 : 1,038,005.40 = 218,963.60 : x
  2. Step 2: Convert to fraction form
    692,133.20/1,038,005.40 = 218,963.60/x
  3. Step 3: Cross multiply
    692,133.20x = 1,038,005.40 × 218,963.60
  4. Step 4: Simplify right side
    692,133.20x = 227,285,399,203.44
  5. Step 5: Solve for x
    x = 227,285,399,203.44/692,133.20
  6. Step 6: Final answer
    x = 328,383.90

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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.