Home / 1,275,378.73-1,759,892.40-785,270.41

Finding the Fourth Proportional to 1,275,378.73, 1,759,892.40 and 785,270.41

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Solution

The fourth proportional to 1,275,378.73, 1,759,892.40 and 785,270.41 is: 1,083,592.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,378.73 : 1,759,892.40 = 785,270.41 : x
  2. Step 2: Convert to fraction form
    1,275,378.73/1,759,892.40 = 785,270.41/x
  3. Step 3: Cross multiply
    1,275,378.73x = 1,759,892.40 × 785,270.41
  4. Step 4: Simplify right side
    1,275,378.73x = 1,381,991,426,503.88
  5. Step 5: Solve for x
    x = 1,381,991,426,503.88/1,275,378.73
  6. Step 6: Final answer
    x = 1,083,592.97

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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.