Home / 1,191,042.21-1,785,558.81-516,615.72

Finding the Fourth Proportional to 1,191,042.21, 1,785,558.81 and 516,615.72

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Solution

The fourth proportional to 1,191,042.21, 1,785,558.81 and 516,615.72 is: 774,487.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,042.21 : 1,785,558.81 = 516,615.72 : x
  2. Step 2: Convert to fraction form
    1,191,042.21/1,785,558.81 = 516,615.72/x
  3. Step 3: Cross multiply
    1,191,042.21x = 1,785,558.81 × 516,615.72
  4. Step 4: Simplify right side
    1,191,042.21x = 922,447,750,230.49
  5. Step 5: Solve for x
    x = 922,447,750,230.49/1,191,042.21
  6. Step 6: Final answer
    x = 774,487.87

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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.