Home / 476,936.40-715,411.80-121,942.56

Finding the Fourth Proportional to 476,936.40, 715,411.80 and 121,942.56

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Solution

The fourth proportional to 476,936.40, 715,411.80 and 121,942.56 is: 182,915.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,936.40 : 715,411.80 = 121,942.56 : x
  2. Step 2: Convert to fraction form
    476,936.40/715,411.80 = 121,942.56/x
  3. Step 3: Cross multiply
    476,936.40x = 715,411.80 × 121,942.56
  4. Step 4: Simplify right side
    476,936.40x = 87,239,146,346.21
  5. Step 5: Solve for x
    x = 87,239,146,346.21/476,936.40
  6. Step 6: Final answer
    x = 182,915.68

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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.