Home / 1,220,211.76-1,683,322.68-767,752.24

Finding the Fourth Proportional to 1,220,211.76, 1,683,322.68 and 767,752.24

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Solution

The fourth proportional to 1,220,211.76, 1,683,322.68 and 767,752.24 is: 1,059,139.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,211.76 : 1,683,322.68 = 767,752.24 : x
  2. Step 2: Convert to fraction form
    1,220,211.76/1,683,322.68 = 767,752.24/x
  3. Step 3: Cross multiply
    1,220,211.76x = 1,683,322.68 × 767,752.24
  4. Step 4: Simplify right side
    1,220,211.76x = 1,292,374,758,212.80
  5. Step 5: Solve for x
    x = 1,292,374,758,212.80/1,220,211.76
  6. Step 6: Final answer
    x = 1,059,139.73

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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.