Home / 757,900.60-1,046,078.66-499,824.12

Finding the Fourth Proportional to 757,900.60, 1,046,078.66 and 499,824.12

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Solution

The fourth proportional to 757,900.60, 1,046,078.66 and 499,824.12 is: 689,873.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,900.60 : 1,046,078.66 = 499,824.12 : x
  2. Step 2: Convert to fraction form
    757,900.60/1,046,078.66 = 499,824.12/x
  3. Step 3: Cross multiply
    757,900.60x = 1,046,078.66 × 499,824.12
  4. Step 4: Simplify right side
    757,900.60x = 522,855,345,676.30
  5. Step 5: Solve for x
    x = 522,855,345,676.30/757,900.60
  6. Step 6: Final answer
    x = 689,873.25

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1.5x scale

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.