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Finding the Fourth Proportional to 436,901.10, 655,351.65 and 259,316.70

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Solution

The fourth proportional to 436,901.10, 655,351.65 and 259,316.70 is: 388,975.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,901.10 : 655,351.65 = 259,316.70 : x
  2. Step 2: Convert to fraction form
    436,901.10/655,351.65 = 259,316.70/x
  3. Step 3: Cross multiply
    436,901.10x = 655,351.65 × 259,316.70
  4. Step 4: Simplify right side
    436,901.10x = 169,943,627,217.56
  5. Step 5: Solve for x
    x = 169,943,627,217.56/436,901.10
  6. Step 6: Final answer
    x = 388,975.05

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Similar ratio
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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.