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Finding the Third Proportional to 429,372 and 564,786

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Solution

The third proportional to 429,372 and 564,786 is: 742,906.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,372 : 564,786 = 564,786 : x
  2. Step 2: Convert to fraction form
    429,372/564,786 = 564,786/x
  3. Step 3: Cross multiply
    429,372x = 564,786 × 564,786
  4. Step 4: Simplify right side
    429,372x = 318,983,225,796
  5. Step 5: Solve for x
    x = 318,983,225,796/429,372
  6. Step 6: Final answer
    x = 742,906.44

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.