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Finding the Fourth Proportional to 406,964.20, 610,446.30 and 265,246.60

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Solution

The fourth proportional to 406,964.20, 610,446.30 and 265,246.60 is: 397,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,964.20 : 610,446.30 = 265,246.60 : x
  2. Step 2: Convert to fraction form
    406,964.20/610,446.30 = 265,246.60/x
  3. Step 3: Cross multiply
    406,964.20x = 610,446.30 × 265,246.60
  4. Step 4: Simplify right side
    406,964.20x = 161,918,805,557.58
  5. Step 5: Solve for x
    x = 161,918,805,557.58/406,964.20
  6. Step 6: Final answer
    x = 397,869.90

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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.