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Finding the Fourth Proportional to 557,681.20, 769,604.92 and 303,032.38

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Solution

The fourth proportional to 557,681.20, 769,604.92 and 303,032.38 is: 418,187.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,681.20 : 769,604.92 = 303,032.38 : x
  2. Step 2: Convert to fraction form
    557,681.20/769,604.92 = 303,032.38/x
  3. Step 3: Cross multiply
    557,681.20x = 769,604.92 × 303,032.38
  4. Step 4: Simplify right side
    557,681.20x = 233,215,210,567.31
  5. Step 5: Solve for x
    x = 233,215,210,567.31/557,681.20
  6. Step 6: Final answer
    x = 418,187.33

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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.