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Finding the Third Proportional to 356,320 and 742,124

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Solution

The third proportional to 356,320 and 742,124 is: 1,545,655.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,320 : 742,124 = 742,124 : x
  2. Step 2: Convert to fraction form
    356,320/742,124 = 742,124/x
  3. Step 3: Cross multiply
    356,320x = 742,124 × 742,124
  4. Step 4: Simplify right side
    356,320x = 550,748,031,376
  5. Step 5: Solve for x
    x = 550,748,031,376/356,320
  6. Step 6: Final answer
    x = 1,545,655.68

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.