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Finding the Third Proportional to 489,855.50 and 742,166.50

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Solution

The third proportional to 489,855.50 and 742,166.50 is: 1,124,435.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,855.50 : 742,166.50 = 742,166.50 : x
  2. Step 2: Convert to fraction form
    489,855.50/742,166.50 = 742,166.50/x
  3. Step 3: Cross multiply
    489,855.50x = 742,166.50 × 742,166.50
  4. Step 4: Simplify right side
    489,855.50x = 550,811,113,722.25
  5. Step 5: Solve for x
    x = 550,811,113,722.25/489,855.50
  6. Step 6: Final answer
    x = 1,124,435.91

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.