Home / 681,834.98-1,022,752.45-647,740.56

Finding the Fourth Proportional to 681,834.98, 1,022,752.45 and 647,740.56

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Solution

The fourth proportional to 681,834.98, 1,022,752.45 and 647,740.56 is: 971,610.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,834.98 : 1,022,752.45 = 647,740.56 : x
  2. Step 2: Convert to fraction form
    681,834.98/1,022,752.45 = 647,740.56/x
  3. Step 3: Cross multiply
    681,834.98x = 1,022,752.45 × 647,740.56
  4. Step 4: Simplify right side
    681,834.98x = 662,478,249,349.37
  5. Step 5: Solve for x
    x = 662,478,249,349.37/681,834.98
  6. Step 6: Final answer
    x = 971,610.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.