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Finding the Third Proportional to 406,089 and 609,133.50

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Solution

The third proportional to 406,089 and 609,133.50 is: 913,700.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,089 : 609,133.50 = 609,133.50 : x
  2. Step 2: Convert to fraction form
    406,089/609,133.50 = 609,133.50/x
  3. Step 3: Cross multiply
    406,089x = 609,133.50 × 609,133.50
  4. Step 4: Simplify right side
    406,089x = 371,043,620,822.25
  5. Step 5: Solve for x
    x = 371,043,620,822.25/406,089
  6. Step 6: Final answer
    x = 913,700.25

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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.