Home / 1,247,761.45-1,721,990.53-703,698.73

Finding the Fourth Proportional to 1,247,761.45, 1,721,990.53 and 703,698.73

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Solution

The fourth proportional to 1,247,761.45, 1,721,990.53 and 703,698.73 is: 971,149.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,761.45 : 1,721,990.53 = 703,698.73 : x
  2. Step 2: Convert to fraction form
    1,247,761.45/1,721,990.53 = 703,698.73/x
  3. Step 3: Cross multiply
    1,247,761.45x = 1,721,990.53 × 703,698.73
  4. Step 4: Simplify right side
    1,247,761.45x = 1,211,762,545,607.67
  5. Step 5: Solve for x
    x = 1,211,762,545,607.67/1,247,761.45
  6. Step 6: Final answer
    x = 971,149.21

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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.