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Finding the Third Proportional to 291,792 and 634,709

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Solution

The third proportional to 291,792 and 634,709 is: 1,380,625.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,792 : 634,709 = 634,709 : x
  2. Step 2: Convert to fraction form
    291,792/634,709 = 634,709/x
  3. Step 3: Cross multiply
    291,792x = 634,709 × 634,709
  4. Step 4: Simplify right side
    291,792x = 402,855,514,681
  5. Step 5: Solve for x
    x = 402,855,514,681/291,792
  6. Step 6: Final answer
    x = 1,380,625.63

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.