Home / 1,307,221.71-1,954,812.83-1,243,448.79

Finding the Fourth Proportional to 1,307,221.71, 1,954,812.83 and 1,243,448.79

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Solution

The fourth proportional to 1,307,221.71, 1,954,812.83 and 1,243,448.79 is: 1,859,447.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,221.71 : 1,954,812.83 = 1,243,448.79 : x
  2. Step 2: Convert to fraction form
    1,307,221.71/1,954,812.83 = 1,243,448.79/x
  3. Step 3: Cross multiply
    1,307,221.71x = 1,954,812.83 × 1,243,448.79
  4. Step 4: Simplify right side
    1,307,221.71x = 2,430,709,645,083.78
  5. Step 5: Solve for x
    x = 2,430,709,645,083.78/1,307,221.71
  6. Step 6: Final answer
    x = 1,859,447.13

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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.