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Finding the Third Proportional to 575,286 and 900,489

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Solution

The third proportional to 575,286 and 900,489 is: 1,409,525.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,286 : 900,489 = 900,489 : x
  2. Step 2: Convert to fraction form
    575,286/900,489 = 900,489/x
  3. Step 3: Cross multiply
    575,286x = 900,489 × 900,489
  4. Step 4: Simplify right side
    575,286x = 810,880,439,121
  5. Step 5: Solve for x
    x = 810,880,439,121/575,286
  6. Step 6: Final answer
    x = 1,409,525.76

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.