Home / 1,247,039.82-1,720,768.73-703,143.20

Finding the Fourth Proportional to 1,247,039.82, 1,720,768.73 and 703,143.20

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Solution

The fourth proportional to 1,247,039.82, 1,720,768.73 and 703,143.20 is: 970,255.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,039.82 : 1,720,768.73 = 703,143.20 : x
  2. Step 2: Convert to fraction form
    1,247,039.82/1,720,768.73 = 703,143.20/x
  3. Step 3: Cross multiply
    1,247,039.82x = 1,720,768.73 × 703,143.20
  4. Step 4: Simplify right side
    1,247,039.82x = 1,209,946,832,058.34
  5. Step 5: Solve for x
    x = 1,209,946,832,058.34/1,247,039.82
  6. Step 6: Final answer
    x = 970,255.17

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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.