Home / 1,239,725.78-1,858,866.11-480,680.52

Finding the Fourth Proportional to 1,239,725.78, 1,858,866.11 and 480,680.52

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Solution

The fourth proportional to 1,239,725.78, 1,858,866.11 and 480,680.52 is: 720,740.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,725.78 : 1,858,866.11 = 480,680.52 : x
  2. Step 2: Convert to fraction form
    1,239,725.78/1,858,866.11 = 480,680.52/x
  3. Step 3: Cross multiply
    1,239,725.78x = 1,858,866.11 × 480,680.52
  4. Step 4: Simplify right side
    1,239,725.78x = 893,520,728,365.18
  5. Step 5: Solve for x
    x = 893,520,728,365.18/1,239,725.78
  6. Step 6: Final answer
    x = 720,740.62

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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.