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Finding the Third Proportional to 291,970 and 426,473

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Solution

The third proportional to 291,970 and 426,473 is: 622,938.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,970 : 426,473 = 426,473 : x
  2. Step 2: Convert to fraction form
    291,970/426,473 = 426,473/x
  3. Step 3: Cross multiply
    291,970x = 426,473 × 426,473
  4. Step 4: Simplify right side
    291,970x = 181,879,219,729
  5. Step 5: Solve for x
    x = 181,879,219,729/291,970
  6. Step 6: Final answer
    x = 622,938.04

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.