Home / 412,260.10-618,390.15-329,316.10

Finding the Fourth Proportional to 412,260.10, 618,390.15 and 329,316.10

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Solution

The fourth proportional to 412,260.10, 618,390.15 and 329,316.10 is: 493,974.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,260.10 : 618,390.15 = 329,316.10 : x
  2. Step 2: Convert to fraction form
    412,260.10/618,390.15 = 329,316.10/x
  3. Step 3: Cross multiply
    412,260.10x = 618,390.15 × 329,316.10
  4. Step 4: Simplify right side
    412,260.10x = 203,645,832,476.42
  5. Step 5: Solve for x
    x = 203,645,832,476.42/412,260.10
  6. Step 6: Final answer
    x = 493,974.15

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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.