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Finding the Third Proportional to 328,368.50 and 709,129

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Solution

The third proportional to 328,368.50 and 709,129 is: 1,531,401.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,368.50 : 709,129 = 709,129 : x
  2. Step 2: Convert to fraction form
    328,368.50/709,129 = 709,129/x
  3. Step 3: Cross multiply
    328,368.50x = 709,129 × 709,129
  4. Step 4: Simplify right side
    328,368.50x = 502,863,938,641
  5. Step 5: Solve for x
    x = 502,863,938,641/328,368.50
  6. Step 6: Final answer
    x = 1,531,401.27

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.