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Finding the Third Proportional to 290,528 and 622,528

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Solution

The third proportional to 290,528 and 622,528 is: 1,333,920.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,528 : 622,528 = 622,528 : x
  2. Step 2: Convert to fraction form
    290,528/622,528 = 622,528/x
  3. Step 3: Cross multiply
    290,528x = 622,528 × 622,528
  4. Step 4: Simplify right side
    290,528x = 387,541,110,784
  5. Step 5: Solve for x
    x = 387,541,110,784/290,528
  6. Step 6: Final answer
    x = 1,333,920.00

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.