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Finding the Third Proportional to 296,428 and 649,076

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Solution

The third proportional to 296,428 and 649,076 is: 1,421,254.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,428 : 649,076 = 649,076 : x
  2. Step 2: Convert to fraction form
    296,428/649,076 = 649,076/x
  3. Step 3: Cross multiply
    296,428x = 649,076 × 649,076
  4. Step 4: Simplify right side
    296,428x = 421,299,653,776
  5. Step 5: Solve for x
    x = 421,299,653,776/296,428
  6. Step 6: Final answer
    x = 1,421,254.58

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.