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Finding the Third Proportional to 457,886 and 700,440

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Solution

The third proportional to 457,886 and 700,440 is: 1,071,481.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,886 : 700,440 = 700,440 : x
  2. Step 2: Convert to fraction form
    457,886/700,440 = 700,440/x
  3. Step 3: Cross multiply
    457,886x = 700,440 × 700,440
  4. Step 4: Simplify right side
    457,886x = 490,616,193,600
  5. Step 5: Solve for x
    x = 490,616,193,600/457,886
  6. Step 6: Final answer
    x = 1,071,481.10

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.