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Finding the Fourth Proportional to 557,652.18, 769,564.69 and 303,003.36

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Solution

The fourth proportional to 557,652.18, 769,564.69 and 303,003.36 is: 418,147.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,652.18 : 769,564.69 = 303,003.36 : x
  2. Step 2: Convert to fraction form
    557,652.18/769,564.69 = 303,003.36/x
  3. Step 3: Cross multiply
    557,652.18x = 769,564.69 × 303,003.36
  4. Step 4: Simplify right side
    557,652.18x = 233,180,686,807.36
  5. Step 5: Solve for x
    x = 233,180,686,807.36/557,652.18
  6. Step 6: Final answer
    x = 418,147.18

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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.