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Finding the Third Proportional to 459,159 and 999,639

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Solution

The third proportional to 459,159 and 999,639 is: 2,176,322.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,159 : 999,639 = 999,639 : x
  2. Step 2: Convert to fraction form
    459,159/999,639 = 999,639/x
  3. Step 3: Cross multiply
    459,159x = 999,639 × 999,639
  4. Step 4: Simplify right side
    459,159x = 999,278,130,321
  5. Step 5: Solve for x
    x = 999,278,130,321/459,159
  6. Step 6: Final answer
    x = 2,176,322.65

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.