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Finding the Third Proportional to 653,607 and 999,120

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Solution

The third proportional to 653,607 and 999,120 is: 1,527,279.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,607 : 999,120 = 999,120 : x
  2. Step 2: Convert to fraction form
    653,607/999,120 = 999,120/x
  3. Step 3: Cross multiply
    653,607x = 999,120 × 999,120
  4. Step 4: Simplify right side
    653,607x = 998,240,774,400
  5. Step 5: Solve for x
    x = 998,240,774,400/653,607
  6. Step 6: Final answer
    x = 1,527,279.81

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.