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Finding the Third Proportional to 359,822 and 528,069

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Solution

The third proportional to 359,822 and 528,069 is: 774,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,822 : 528,069 = 528,069 : x
  2. Step 2: Convert to fraction form
    359,822/528,069 = 528,069/x
  3. Step 3: Cross multiply
    359,822x = 528,069 × 528,069
  4. Step 4: Simplify right side
    359,822x = 278,856,868,761
  5. Step 5: Solve for x
    x = 278,856,868,761/359,822
  6. Step 6: Final answer
    x = 774,985.60

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.