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Finding the Third Proportional to 643,584 and 846,316

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Solution

The third proportional to 643,584 and 846,316 is: 1,112,909.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,584 : 846,316 = 846,316 : x
  2. Step 2: Convert to fraction form
    643,584/846,316 = 846,316/x
  3. Step 3: Cross multiply
    643,584x = 846,316 × 846,316
  4. Step 4: Simplify right side
    643,584x = 716,250,771,856
  5. Step 5: Solve for x
    x = 716,250,771,856/643,584
  6. Step 6: Final answer
    x = 1,112,909.54

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.