Home / 1,276,403.40-1,761,436.70-703,443.58

Finding the Fourth Proportional to 1,276,403.40, 1,761,436.70 and 703,443.58

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Solution

The fourth proportional to 1,276,403.40, 1,761,436.70 and 703,443.58 is: 970,752.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,403.40 : 1,761,436.70 = 703,443.58 : x
  2. Step 2: Convert to fraction form
    1,276,403.40/1,761,436.70 = 703,443.58/x
  3. Step 3: Cross multiply
    1,276,403.40x = 1,761,436.70 × 703,443.58
  4. Step 4: Simplify right side
    1,276,403.40x = 1,239,071,338,191.39
  5. Step 5: Solve for x
    x = 1,239,071,338,191.39/1,276,403.40
  6. Step 6: Final answer
    x = 970,752.14

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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.