Home / 689,306.80-1,033,960.56-216,029.02

Finding the Fourth Proportional to 689,306.80, 1,033,960.56 and 216,029.02

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Solution

The fourth proportional to 689,306.80, 1,033,960.56 and 216,029.02 is: 324,043.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,306.80 : 1,033,960.56 = 216,029.02 : x
  2. Step 2: Convert to fraction form
    689,306.80/1,033,960.56 = 216,029.02/x
  3. Step 3: Cross multiply
    689,306.80x = 1,033,960.56 × 216,029.02
  4. Step 4: Simplify right side
    689,306.80x = 223,365,486,495.45
  5. Step 5: Solve for x
    x = 223,365,486,495.45/689,306.80
  6. Step 6: Final answer
    x = 324,043.64

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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.