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Finding the Fourth Proportional to 406,968.70, 610,453.05 and 207,903.10

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Solution

The fourth proportional to 406,968.70, 610,453.05 and 207,903.10 is: 311,854.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,968.70 : 610,453.05 = 207,903.10 : x
  2. Step 2: Convert to fraction form
    406,968.70/610,453.05 = 207,903.10/x
  3. Step 3: Cross multiply
    406,968.70x = 610,453.05 × 207,903.10
  4. Step 4: Simplify right side
    406,968.70x = 126,915,081,499.46
  5. Step 5: Solve for x
    x = 126,915,081,499.46/406,968.70
  6. Step 6: Final answer
    x = 311,854.65

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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.