Home / 989,771.85-1,484,361.56-516,198.87

Finding the Fourth Proportional to 989,771.85, 1,484,361.56 and 516,198.87

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Solution

The fourth proportional to 989,771.85, 1,484,361.56 and 516,198.87 is: 774,143.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,771.85 : 1,484,361.56 = 516,198.87 : x
  2. Step 2: Convert to fraction form
    989,771.85/1,484,361.56 = 516,198.87/x
  3. Step 3: Cross multiply
    989,771.85x = 1,484,361.56 × 516,198.87
  4. Step 4: Simplify right side
    989,771.85x = 766,225,761,233.93
  5. Step 5: Solve for x
    x = 766,225,761,233.93/989,771.85
  6. Step 6: Final answer
    x = 774,143.82

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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.