Home / 1,276,781.73-1,761,970.76-703,842.40

Finding the Fourth Proportional to 1,276,781.73, 1,761,970.76 and 703,842.40

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Solution

The fourth proportional to 1,276,781.73, 1,761,970.76 and 703,842.40 is: 971,309.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,781.73 : 1,761,970.76 = 703,842.40 : x
  2. Step 2: Convert to fraction form
    1,276,781.73/1,761,970.76 = 703,842.40/x
  3. Step 3: Cross multiply
    1,276,781.73x = 1,761,970.76 × 703,842.40
  4. Step 4: Simplify right side
    1,276,781.73x = 1,240,149,728,448.22
  5. Step 5: Solve for x
    x = 1,240,149,728,448.22/1,276,781.73
  6. Step 6: Final answer
    x = 971,309.11

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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.