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Finding the Third Proportional to 385,920 and 1,024,359.75

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Solution

The third proportional to 385,920 and 1,024,359.75 is: 2,718,990.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,920 : 1,024,359.75 = 1,024,359.75 : x
  2. Step 2: Convert to fraction form
    385,920/1,024,359.75 = 1,024,359.75/x
  3. Step 3: Cross multiply
    385,920x = 1,024,359.75 × 1,024,359.75
  4. Step 4: Simplify right side
    385,920x = 1,049,312,897,420.06
  5. Step 5: Solve for x
    x = 1,049,312,897,420.06/385,920
  6. Step 6: Final answer
    x = 2,718,990.72

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Why These Related Problems?

These problems maintain the same ratio (2.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.