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Finding the Fourth Proportional to 406,430.40, 609,645.60 and 246,998.10

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Solution

The fourth proportional to 406,430.40, 609,645.60 and 246,998.10 is: 370,497.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,430.40 : 609,645.60 = 246,998.10 : x
  2. Step 2: Convert to fraction form
    406,430.40/609,645.60 = 246,998.10/x
  3. Step 3: Cross multiply
    406,430.40x = 609,645.60 × 246,998.10
  4. Step 4: Simplify right side
    406,430.40x = 150,581,304,873.36
  5. Step 5: Solve for x
    x = 150,581,304,873.36/406,430.40
  6. Step 6: Final answer
    x = 370,497.15

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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.