Home / 1,220,310.01-1,683,458.27-767,850.49

Finding the Fourth Proportional to 1,220,310.01, 1,683,458.27 and 767,850.49

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Solution

The fourth proportional to 1,220,310.01, 1,683,458.27 and 767,850.49 is: 1,059,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,310.01 : 1,683,458.27 = 767,850.49 : x
  2. Step 2: Convert to fraction form
    1,220,310.01/1,683,458.27 = 767,850.49/x
  3. Step 3: Cross multiply
    1,220,310.01x = 1,683,458.27 × 767,850.49
  4. Step 4: Simplify right side
    1,220,310.01x = 1,292,644,253,674.80
  5. Step 5: Solve for x
    x = 1,292,644,253,674.80/1,220,310.01
  6. Step 6: Final answer
    x = 1,059,275.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.