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Finding the Third Proportional to 388,750.50 and 580,126.50

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Solution

The third proportional to 388,750.50 and 580,126.50 is: 865,714.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,750.50 : 580,126.50 = 580,126.50 : x
  2. Step 2: Convert to fraction form
    388,750.50/580,126.50 = 580,126.50/x
  3. Step 3: Cross multiply
    388,750.50x = 580,126.50 × 580,126.50
  4. Step 4: Simplify right side
    388,750.50x = 336,546,756,002.25
  5. Step 5: Solve for x
    x = 336,546,756,002.25/388,750.50
  6. Step 6: Final answer
    x = 865,714.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.