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Finding the Fourth Proportional to 406,952.60, 610,428.90 and 300,664.40

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Solution

The fourth proportional to 406,952.60, 610,428.90 and 300,664.40 is: 450,996.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,952.60 : 610,428.90 = 300,664.40 : x
  2. Step 2: Convert to fraction form
    406,952.60/610,428.90 = 300,664.40/x
  3. Step 3: Cross multiply
    406,952.60x = 610,428.90 × 300,664.40
  4. Step 4: Simplify right side
    406,952.60x = 183,534,238,961.16
  5. Step 5: Solve for x
    x = 183,534,238,961.16/406,952.60
  6. Step 6: Final answer
    x = 450,996.60

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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.