Home / 457,682.36-686,569.62-120,746.30

Finding the Fourth Proportional to 457,682.36, 686,569.62 and 120,746.30

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Solution

The fourth proportional to 457,682.36, 686,569.62 and 120,746.30 is: 181,131.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,682.36 : 686,569.62 = 120,746.30 : x
  2. Step 2: Convert to fraction form
    457,682.36/686,569.62 = 120,746.30/x
  3. Step 3: Cross multiply
    457,682.36x = 686,569.62 × 120,746.30
  4. Step 4: Simplify right side
    457,682.36x = 82,900,741,307.41
  5. Step 5: Solve for x
    x = 82,900,741,307.41/457,682.36
  6. Step 6: Final answer
    x = 181,131.61

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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.