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Finding the Third Proportional to 709,977 and 1,528,211

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Solution

The third proportional to 709,977 and 1,528,211 is: 3,289,442.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,977 : 1,528,211 = 1,528,211 : x
  2. Step 2: Convert to fraction form
    709,977/1,528,211 = 1,528,211/x
  3. Step 3: Cross multiply
    709,977x = 1,528,211 × 1,528,211
  4. Step 4: Simplify right side
    709,977x = 2,335,428,860,521
  5. Step 5: Solve for x
    x = 2,335,428,860,521/709,977
  6. Step 6: Final answer
    x = 3,289,442.98

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.