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Finding the Third Proportional to 515,156.63 and 1,118,981.25

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Solution

The third proportional to 515,156.63 and 1,118,981.25 is: 2,430,559.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,156.63 : 1,118,981.25 = 1,118,981.25 : x
  2. Step 2: Convert to fraction form
    515,156.63/1,118,981.25 = 1,118,981.25/x
  3. Step 3: Cross multiply
    515,156.63x = 1,118,981.25 × 1,118,981.25
  4. Step 4: Simplify right side
    515,156.63x = 1,252,119,037,851.56
  5. Step 5: Solve for x
    x = 1,252,119,037,851.56/515,156.63
  6. Step 6: Final answer
    x = 2,430,559.91

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.