Home / 1,299,020.87-1,792,576.47-718,210.38

Finding the Fourth Proportional to 1,299,020.87, 1,792,576.47 and 718,210.38

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Solution

The fourth proportional to 1,299,020.87, 1,792,576.47 and 718,210.38 is: 991,090.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,020.87 : 1,792,576.47 = 718,210.38 : x
  2. Step 2: Convert to fraction form
    1,299,020.87/1,792,576.47 = 718,210.38/x
  3. Step 3: Cross multiply
    1,299,020.87x = 1,792,576.47 × 718,210.38
  4. Step 4: Simplify right side
    1,299,020.87x = 1,287,447,027,697.76
  5. Step 5: Solve for x
    x = 1,287,447,027,697.76/1,299,020.87
  6. Step 6: Final answer
    x = 991,090.33

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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.