Home / 739,933.60-1,109,900.40-515,984.80

Finding the Fourth Proportional to 739,933.60, 1,109,900.40 and 515,984.80

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Solution

The fourth proportional to 739,933.60, 1,109,900.40 and 515,984.80 is: 773,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,933.60 : 1,109,900.40 = 515,984.80 : x
  2. Step 2: Convert to fraction form
    739,933.60/1,109,900.40 = 515,984.80/x
  3. Step 3: Cross multiply
    739,933.60x = 1,109,900.40 × 515,984.80
  4. Step 4: Simplify right side
    739,933.60x = 572,691,735,913.92
  5. Step 5: Solve for x
    x = 572,691,735,913.92/739,933.60
  6. Step 6: Final answer
    x = 773,977.20

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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.