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Finding the Fourth Proportional to 557,615.82, 769,516.83 and 302,971.26

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Solution

The fourth proportional to 557,615.82, 769,516.83 and 302,971.26 is: 418,104.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,615.82 : 769,516.83 = 302,971.26 : x
  2. Step 2: Convert to fraction form
    557,615.82/769,516.83 = 302,971.26/x
  3. Step 3: Cross multiply
    557,615.82x = 769,516.83 × 302,971.26
  4. Step 4: Simplify right side
    557,615.82x = 233,141,483,576.31
  5. Step 5: Solve for x
    x = 233,141,483,576.31/557,615.82
  6. Step 6: Final answer
    x = 418,104.14

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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.