Home / 457,533.05-686,240.93-120,600.18

Finding the Fourth Proportional to 457,533.05, 686,240.93 and 120,600.18

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Solution

The fourth proportional to 457,533.05, 686,240.93 and 120,600.18 is: 180,884.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,533.05 : 686,240.93 = 120,600.18 : x
  2. Step 2: Convert to fraction form
    457,533.05/686,240.93 = 120,600.18/x
  3. Step 3: Cross multiply
    457,533.05x = 686,240.93 × 120,600.18
  4. Step 4: Simplify right side
    457,533.05x = 82,760,779,078.37
  5. Step 5: Solve for x
    x = 82,760,779,078.37/457,533.05
  6. Step 6: Final answer
    x = 180,884.81

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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.