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Finding the Third Proportional to 485,437.50 and 728,156.50

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Solution

The third proportional to 485,437.50 and 728,156.50 is: 1,092,235.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,437.50 : 728,156.50 = 728,156.50 : x
  2. Step 2: Convert to fraction form
    485,437.50/728,156.50 = 728,156.50/x
  3. Step 3: Cross multiply
    485,437.50x = 728,156.50 × 728,156.50
  4. Step 4: Simplify right side
    485,437.50x = 530,211,888,492.25
  5. Step 5: Solve for x
    x = 530,211,888,492.25/485,437.50
  6. Step 6: Final answer
    x = 1,092,235.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.