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Finding the Third Proportional to 430,448 and 1,000,280

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Solution

The third proportional to 430,448 and 1,000,280 is: 2,324,462.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,448 : 1,000,280 = 1,000,280 : x
  2. Step 2: Convert to fraction form
    430,448/1,000,280 = 1,000,280/x
  3. Step 3: Cross multiply
    430,448x = 1,000,280 × 1,000,280
  4. Step 4: Simplify right side
    430,448x = 1,000,560,078,400
  5. Step 5: Solve for x
    x = 1,000,560,078,400/430,448
  6. Step 6: Final answer
    x = 2,324,462.14

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.