Home / 980,040.96-1,471,111.20-771,138.72

Finding the Fourth Proportional to 980,040.96, 1,471,111.20 and 771,138.72

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Solution

The fourth proportional to 980,040.96, 1,471,111.20 and 771,138.72 is: 1,157,534.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,040.96 : 1,471,111.20 = 771,138.72 : x
  2. Step 2: Convert to fraction form
    980,040.96/1,471,111.20 = 771,138.72/x
  3. Step 3: Cross multiply
    980,040.96x = 1,471,111.20 × 771,138.72
  4. Step 4: Simplify right side
    980,040.96x = 1,134,430,807,745.66
  5. Step 5: Solve for x
    x = 1,134,430,807,745.66/980,040.96
  6. Step 6: Final answer
    x = 1,157,534.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.