Home / 747,485.40-1,121,009.40-267,657.60

Finding the Fourth Proportional to 747,485.40, 1,121,009.40 and 267,657.60

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Solution

The fourth proportional to 747,485.40, 1,121,009.40 and 267,657.60 is: 401,408.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,485.40 : 1,121,009.40 = 267,657.60 : x
  2. Step 2: Convert to fraction form
    747,485.40/1,121,009.40 = 267,657.60/x
  3. Step 3: Cross multiply
    747,485.40x = 1,121,009.40 × 267,657.60
  4. Step 4: Simplify right side
    747,485.40x = 300,046,685,581.44
  5. Step 5: Solve for x
    x = 300,046,685,581.44/747,485.40
  6. Step 6: Final answer
    x = 401,408.09

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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.