Home / 328,867.40-493,301.10-299,318.60

Finding the Fourth Proportional to 328,867.40, 493,301.10 and 299,318.60

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Solution

The fourth proportional to 328,867.40, 493,301.10 and 299,318.60 is: 448,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,867.40 : 493,301.10 = 299,318.60 : x
  2. Step 2: Convert to fraction form
    328,867.40/493,301.10 = 299,318.60/x
  3. Step 3: Cross multiply
    328,867.40x = 493,301.10 × 299,318.60
  4. Step 4: Simplify right side
    328,867.40x = 147,654,194,630.46
  5. Step 5: Solve for x
    x = 147,654,194,630.46/328,867.40
  6. Step 6: Final answer
    x = 448,977.90

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1.5x scale

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.