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Finding the Fourth Proportional to 557,681.19, 769,604.66 and 303,032.38

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Solution

The fourth proportional to 557,681.19, 769,604.66 and 303,032.38 is: 418,187.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,681.19 : 769,604.66 = 303,032.38 : x
  2. Step 2: Convert to fraction form
    557,681.19/769,604.66 = 303,032.38/x
  3. Step 3: Cross multiply
    557,681.19x = 769,604.66 × 303,032.38
  4. Step 4: Simplify right side
    557,681.19x = 233,215,131,640.60
  5. Step 5: Solve for x
    x = 233,215,131,640.60/557,681.19
  6. Step 6: Final answer
    x = 418,187.19

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1.5x scale

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.