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Finding the Fourth Proportional to 785,201.20, 1,101,770 and 785,201.20

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Solution

The fourth proportional to 785,201.20, 1,101,770 and 785,201.20 is: 1,101,770

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,201.20 : 1,101,770 = 785,201.20 : x
  2. Step 2: Convert to fraction form
    785,201.20/1,101,770 = 785,201.20/x
  3. Step 3: Cross multiply
    785,201.20x = 1,101,770 × 785,201.20
  4. Step 4: Simplify right side
    785,201.20x = 865,111,126,124
  5. Step 5: Solve for x
    x = 865,111,126,124/785,201.20
  6. Step 6: Final answer
    x = 1,101,770

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.