Home / 692,043.89-1,038,216.24-212,273.60

Finding the Fourth Proportional to 692,043.89, 1,038,216.24 and 212,273.60

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Solution

The fourth proportional to 692,043.89, 1,038,216.24 and 212,273.60 is: 318,456.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,043.89 : 1,038,216.24 = 212,273.60 : x
  2. Step 2: Convert to fraction form
    692,043.89/1,038,216.24 = 212,273.60/x
  3. Step 3: Cross multiply
    692,043.89x = 1,038,216.24 × 212,273.60
  4. Step 4: Simplify right side
    692,043.89x = 220,385,893,652.18
  5. Step 5: Solve for x
    x = 220,385,893,652.18/692,043.89
  6. Step 6: Final answer
    x = 318,456.53

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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.