Home / 1,718,812.80-2,579,140.80-721,641.60

Finding the Fourth Proportional to 1,718,812.80, 2,579,140.80 and 721,641.60

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Solution

The fourth proportional to 1,718,812.80, 2,579,140.80 and 721,641.60 is: 1,082,849.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718,812.80 : 2,579,140.80 = 721,641.60 : x
  2. Step 2: Convert to fraction form
    1,718,812.80/2,579,140.80 = 721,641.60/x
  3. Step 3: Cross multiply
    1,718,812.80x = 2,579,140.80 × 721,641.60
  4. Step 4: Simplify right side
    1,718,812.80x = 1,861,215,293,537.28
  5. Step 5: Solve for x
    x = 1,861,215,293,537.28/1,718,812.80
  6. Step 6: Final answer
    x = 1,082,849.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.