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Finding the Third Proportional to 864,312 and 1,867,107

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Solution

The third proportional to 864,312 and 1,867,107 is: 4,033,368.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,312 : 1,867,107 = 1,867,107 : x
  2. Step 2: Convert to fraction form
    864,312/1,867,107 = 1,867,107/x
  3. Step 3: Cross multiply
    864,312x = 1,867,107 × 1,867,107
  4. Step 4: Simplify right side
    864,312x = 3,486,088,549,449
  5. Step 5: Solve for x
    x = 3,486,088,549,449/864,312
  6. Step 6: Final answer
    x = 4,033,368.22

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.