Home / 1,276,343.77-1,761,391.32-703,420.85

Finding the Fourth Proportional to 1,276,343.77, 1,761,391.32 and 703,420.85

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Solution

The fourth proportional to 1,276,343.77, 1,761,391.32 and 703,420.85 is: 970,741.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,343.77 : 1,761,391.32 = 703,420.85 : x
  2. Step 2: Convert to fraction form
    1,276,343.77/1,761,391.32 = 703,420.85/x
  3. Step 3: Cross multiply
    1,276,343.77x = 1,761,391.32 × 703,420.85
  4. Step 4: Simplify right side
    1,276,343.77x = 1,238,999,374,657.45
  5. Step 5: Solve for x
    x = 1,238,999,374,657.45/1,276,343.77
  6. Step 6: Final answer
    x = 970,741.11

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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.