Home / 1,276,688.88-1,761,909.48-703,727.76

Finding the Fourth Proportional to 1,276,688.88, 1,761,909.48 and 703,727.76

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Solution

The fourth proportional to 1,276,688.88, 1,761,909.48 and 703,727.76 is: 971,187.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,688.88 : 1,761,909.48 = 703,727.76 : x
  2. Step 2: Convert to fraction form
    1,276,688.88/1,761,909.48 = 703,727.76/x
  3. Step 3: Cross multiply
    1,276,688.88x = 1,761,909.48 × 703,727.76
  4. Step 4: Simplify right side
    1,276,688.88x = 1,239,904,611,683.16
  5. Step 5: Solve for x
    x = 1,239,904,611,683.16/1,276,688.88
  6. Step 6: Final answer
    x = 971,187.76

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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.