Home / 1,318,749.80-1,978,124.70-655,197.80

Finding the Fourth Proportional to 1,318,749.80, 1,978,124.70 and 655,197.80

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Solution

The fourth proportional to 1,318,749.80, 1,978,124.70 and 655,197.80 is: 982,796.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,749.80 : 1,978,124.70 = 655,197.80 : x
  2. Step 2: Convert to fraction form
    1,318,749.80/1,978,124.70 = 655,197.80/x
  3. Step 3: Cross multiply
    1,318,749.80x = 1,978,124.70 × 655,197.80
  4. Step 4: Simplify right side
    1,318,749.80x = 1,296,062,951,565.66
  5. Step 5: Solve for x
    x = 1,296,062,951,565.66/1,318,749.80
  6. Step 6: Final answer
    x = 982,796.70

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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.