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Finding the Fourth Proportional to 498,664.80, 747,559.80 and 299,064.60

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Solution

The fourth proportional to 498,664.80, 747,559.80 and 299,064.60 is: 448,334.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,664.80 : 747,559.80 = 299,064.60 : x
  2. Step 2: Convert to fraction form
    498,664.80/747,559.80 = 299,064.60/x
  3. Step 3: Cross multiply
    498,664.80x = 747,559.80 × 299,064.60
  4. Step 4: Simplify right side
    498,664.80x = 223,568,672,563.08
  5. Step 5: Solve for x
    x = 223,568,672,563.08/498,664.80
  6. Step 6: Final answer
    x = 448,334.58

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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.