Home / 920,155.73-1,380,515.29-471,194.48

Finding the Fourth Proportional to 920,155.73, 1,380,515.29 and 471,194.48

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Solution

The fourth proportional to 920,155.73, 1,380,515.29 and 471,194.48 is: 706,935.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,155.73 : 1,380,515.29 = 471,194.48 : x
  2. Step 2: Convert to fraction form
    920,155.73/1,380,515.29 = 471,194.48/x
  3. Step 3: Cross multiply
    920,155.73x = 1,380,515.29 × 471,194.48
  4. Step 4: Simplify right side
    920,155.73x = 650,491,184,203.60
  5. Step 5: Solve for x
    x = 650,491,184,203.60/920,155.73
  6. Step 6: Final answer
    x = 706,935.97

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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.