Home / 1,220,423.64-1,830,940.37-861,295.69

Finding the Fourth Proportional to 1,220,423.64, 1,830,940.37 and 861,295.69

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Solution

The fourth proportional to 1,220,423.64, 1,830,940.37 and 861,295.69 is: 1,292,158.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,423.64 : 1,830,940.37 = 861,295.69 : x
  2. Step 2: Convert to fraction form
    1,220,423.64/1,830,940.37 = 861,295.69/x
  3. Step 3: Cross multiply
    1,220,423.64x = 1,830,940.37 × 861,295.69
  4. Step 4: Simplify right side
    1,220,423.64x = 1,576,981,050,540.06
  5. Step 5: Solve for x
    x = 1,576,981,050,540.06/1,220,423.64
  6. Step 6: Final answer
    x = 1,292,158.73

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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.