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Finding the Fourth Proportional to 557,687.62, 769,613.75 and 303,038.81

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Solution

The fourth proportional to 557,687.62, 769,613.75 and 303,038.81 is: 418,196.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,687.62 : 769,613.75 = 303,038.81 : x
  2. Step 2: Convert to fraction form
    557,687.62/769,613.75 = 303,038.81/x
  3. Step 3: Cross multiply
    557,687.62x = 769,613.75 × 303,038.81
  4. Step 4: Simplify right side
    557,687.62x = 233,222,831,869.17
  5. Step 5: Solve for x
    x = 233,222,831,869.17/557,687.62
  6. Step 6: Final answer
    x = 418,196.18

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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.