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Finding the Fourth Proportional to 539,574.30, 809,361.45 and 516,537.90

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Solution

The fourth proportional to 539,574.30, 809,361.45 and 516,537.90 is: 774,806.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,574.30 : 809,361.45 = 516,537.90 : x
  2. Step 2: Convert to fraction form
    539,574.30/809,361.45 = 516,537.90/x
  3. Step 3: Cross multiply
    539,574.30x = 809,361.45 × 516,537.90
  4. Step 4: Simplify right side
    539,574.30x = 418,065,863,723.96
  5. Step 5: Solve for x
    x = 418,065,863,723.96/539,574.30
  6. Step 6: Final answer
    x = 774,806.85

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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.