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Finding the Third Proportional to 501,428.75 and 776,748.50

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Solution

The third proportional to 501,428.75 and 776,748.50 is: 1,203,238.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,428.75 : 776,748.50 = 776,748.50 : x
  2. Step 2: Convert to fraction form
    501,428.75/776,748.50 = 776,748.50/x
  3. Step 3: Cross multiply
    501,428.75x = 776,748.50 × 776,748.50
  4. Step 4: Simplify right side
    501,428.75x = 603,338,232,252.25
  5. Step 5: Solve for x
    x = 603,338,232,252.25/501,428.75
  6. Step 6: Final answer
    x = 1,203,238.21

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.