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Finding the Third Proportional to 287,782.50 and 450,459

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Solution

The third proportional to 287,782.50 and 450,459 is: 705,092.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,782.50 : 450,459 = 450,459 : x
  2. Step 2: Convert to fraction form
    287,782.50/450,459 = 450,459/x
  3. Step 3: Cross multiply
    287,782.50x = 450,459 × 450,459
  4. Step 4: Simplify right side
    287,782.50x = 202,913,310,681
  5. Step 5: Solve for x
    x = 202,913,310,681/287,782.50
  6. Step 6: Final answer
    x = 705,092.60

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.