Home / 1,220,231.76-1,683,350.28-767,772.24

Finding the Fourth Proportional to 1,220,231.76, 1,683,350.28 and 767,772.24

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Solution

The fourth proportional to 1,220,231.76, 1,683,350.28 and 767,772.24 is: 1,059,167.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,231.76 : 1,683,350.28 = 767,772.24 : x
  2. Step 2: Convert to fraction form
    1,220,231.76/1,683,350.28 = 767,772.24/x
  3. Step 3: Cross multiply
    1,220,231.76x = 1,683,350.28 × 767,772.24
  4. Step 4: Simplify right side
    1,220,231.76x = 1,292,429,615,180.23
  5. Step 5: Solve for x
    x = 1,292,429,615,180.23/1,220,231.76
  6. Step 6: Final answer
    x = 1,059,167.33

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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.