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Finding the Third Proportional to 540,636 and 778,772

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Solution

The third proportional to 540,636 and 778,772 is: 1,121,800.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,636 : 778,772 = 778,772 : x
  2. Step 2: Convert to fraction form
    540,636/778,772 = 778,772/x
  3. Step 3: Cross multiply
    540,636x = 778,772 × 778,772
  4. Step 4: Simplify right side
    540,636x = 606,485,827,984
  5. Step 5: Solve for x
    x = 606,485,827,984/540,636
  6. Step 6: Final answer
    x = 1,121,800.67

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.