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Finding the Third Proportional to 388,547.03 and 553,757.37

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Solution

The third proportional to 388,547.03 and 553,757.37 is: 789,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,547.03 : 553,757.37 = 553,757.37 : x
  2. Step 2: Convert to fraction form
    388,547.03/553,757.37 = 553,757.37/x
  3. Step 3: Cross multiply
    388,547.03x = 553,757.37 × 553,757.37
  4. Step 4: Simplify right side
    388,547.03x = 306,647,224,959.10
  5. Step 5: Solve for x
    x = 306,647,224,959.10/388,547.03
  6. Step 6: Final answer
    x = 789,215.20

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.