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Finding the Fourth Proportional to 766,560, 1,057,286.10 and 562,542

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Solution

The fourth proportional to 766,560, 1,057,286.10 and 562,542 is: 775,892.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,560 : 1,057,286.10 = 562,542 : x
  2. Step 2: Convert to fraction form
    766,560/1,057,286.10 = 562,542/x
  3. Step 3: Cross multiply
    766,560x = 1,057,286.10 × 562,542
  4. Step 4: Simplify right side
    766,560x = 594,767,837,266.20
  5. Step 5: Solve for x
    x = 594,767,837,266.20/766,560
  6. Step 6: Final answer
    x = 775,892.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.