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Finding the Third Proportional to 990,730 and 1,574,489

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Solution

The third proportional to 990,730 and 1,574,489 is: 2,502,211.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,730 : 1,574,489 = 1,574,489 : x
  2. Step 2: Convert to fraction form
    990,730/1,574,489 = 1,574,489/x
  3. Step 3: Cross multiply
    990,730x = 1,574,489 × 1,574,489
  4. Step 4: Simplify right side
    990,730x = 2,479,015,611,121
  5. Step 5: Solve for x
    x = 2,479,015,611,121/990,730
  6. Step 6: Final answer
    x = 2,502,211.11

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.