Home / 1,301,926.90-1,796,579.86-721,115.60

Finding the Fourth Proportional to 1,301,926.90, 1,796,579.86 and 721,115.60

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Solution

The fourth proportional to 1,301,926.90, 1,796,579.86 and 721,115.60 is: 995,095.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,926.90 : 1,796,579.86 = 721,115.60 : x
  2. Step 2: Convert to fraction form
    1,301,926.90/1,796,579.86 = 721,115.60/x
  3. Step 3: Cross multiply
    1,301,926.90x = 1,796,579.86 × 721,115.60
  4. Step 4: Simplify right side
    1,301,926.90x = 1,295,541,754,708.92
  5. Step 5: Solve for x
    x = 1,295,541,754,708.92/1,301,926.90
  6. Step 6: Final answer
    x = 995,095.62

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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.