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Finding the Third Proportional to 486,715.50 and 651,064.50

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Solution

The third proportional to 486,715.50 and 651,064.50 is: 870,909.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,715.50 : 651,064.50 = 651,064.50 : x
  2. Step 2: Convert to fraction form
    486,715.50/651,064.50 = 651,064.50/x
  3. Step 3: Cross multiply
    486,715.50x = 651,064.50 × 651,064.50
  4. Step 4: Simplify right side
    486,715.50x = 423,884,983,160.25
  5. Step 5: Solve for x
    x = 423,884,983,160.25/486,715.50
  6. Step 6: Final answer
    x = 870,909.15

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.