Home / 669,610.80-1,004,416.20-645,991.20

Finding the Fourth Proportional to 669,610.80, 1,004,416.20 and 645,991.20

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Solution

The fourth proportional to 669,610.80, 1,004,416.20 and 645,991.20 is: 968,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,610.80 : 1,004,416.20 = 645,991.20 : x
  2. Step 2: Convert to fraction form
    669,610.80/1,004,416.20 = 645,991.20/x
  3. Step 3: Cross multiply
    669,610.80x = 1,004,416.20 × 645,991.20
  4. Step 4: Simplify right side
    669,610.80x = 648,844,026,337.44
  5. Step 5: Solve for x
    x = 648,844,026,337.44/669,610.80
  6. Step 6: Final answer
    x = 968,986.80

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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.