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Finding the Third Proportional to 390,652.50 and 829,285.50

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Solution

The third proportional to 390,652.50 and 829,285.50 is: 1,760,425.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,652.50 : 829,285.50 = 829,285.50 : x
  2. Step 2: Convert to fraction form
    390,652.50/829,285.50 = 829,285.50/x
  3. Step 3: Cross multiply
    390,652.50x = 829,285.50 × 829,285.50
  4. Step 4: Simplify right side
    390,652.50x = 687,714,440,510.25
  5. Step 5: Solve for x
    x = 687,714,440,510.25/390,652.50
  6. Step 6: Final answer
    x = 1,760,425.03

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.