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Finding the Fourth Proportional to 557,652.82, 769,567.90 and 303,008.26

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Solution

The fourth proportional to 557,652.82, 769,567.90 and 303,008.26 is: 418,155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,652.82 : 769,567.90 = 303,008.26 : x
  2. Step 2: Convert to fraction form
    557,652.82/769,567.90 = 303,008.26/x
  3. Step 3: Cross multiply
    557,652.82x = 769,567.90 × 303,008.26
  4. Step 4: Simplify right side
    557,652.82x = 233,185,430,330.85
  5. Step 5: Solve for x
    x = 233,185,430,330.85/557,652.82
  6. Step 6: Final answer
    x = 418,155.21

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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.