Home / 1,294,110.93-1,939,020.61-787,138.21

Finding the Fourth Proportional to 1,294,110.93, 1,939,020.61 and 787,138.21

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Solution

The fourth proportional to 1,294,110.93, 1,939,020.61 and 787,138.21 is: 1,179,402.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,110.93 : 1,939,020.61 = 787,138.21 : x
  2. Step 2: Convert to fraction form
    1,294,110.93/1,939,020.61 = 787,138.21/x
  3. Step 3: Cross multiply
    1,294,110.93x = 1,939,020.61 × 787,138.21
  4. Step 4: Simplify right side
    1,294,110.93x = 1,526,277,212,108.51
  5. Step 5: Solve for x
    x = 1,526,277,212,108.51/1,294,110.93
  6. Step 6: Final answer
    x = 1,179,402.15

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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.