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Finding the Third Proportional to 425,688.75 and 909,211.50

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Solution

The third proportional to 425,688.75 and 909,211.50 is: 1,941,948.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,688.75 : 909,211.50 = 909,211.50 : x
  2. Step 2: Convert to fraction form
    425,688.75/909,211.50 = 909,211.50/x
  3. Step 3: Cross multiply
    425,688.75x = 909,211.50 × 909,211.50
  4. Step 4: Simplify right side
    425,688.75x = 826,665,551,732.25
  5. Step 5: Solve for x
    x = 826,665,551,732.25/425,688.75
  6. Step 6: Final answer
    x = 1,941,948.32

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.