Home / 1,230,218.74-1,697,663.37-721,260.10

Finding the Fourth Proportional to 1,230,218.74, 1,697,663.37 and 721,260.10

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Solution

The fourth proportional to 1,230,218.74, 1,697,663.37 and 721,260.10 is: 995,316.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,218.74 : 1,697,663.37 = 721,260.10 : x
  2. Step 2: Convert to fraction form
    1,230,218.74/1,697,663.37 = 721,260.10/x
  3. Step 3: Cross multiply
    1,230,218.74x = 1,697,663.37 × 721,260.10
  4. Step 4: Simplify right side
    1,230,218.74x = 1,224,456,852,012.54
  5. Step 5: Solve for x
    x = 1,224,456,852,012.54/1,230,218.74
  6. Step 6: Final answer
    x = 995,316.37

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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.