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Finding the Fourth Proportional to 557,321.72, 769,422.78 and 366,888.69

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Solution

The fourth proportional to 557,321.72, 769,422.78 and 366,888.69 is: 506,516.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,321.72 : 769,422.78 = 366,888.69 : x
  2. Step 2: Convert to fraction form
    557,321.72/769,422.78 = 366,888.69/x
  3. Step 3: Cross multiply
    557,321.72x = 769,422.78 × 366,888.69
  4. Step 4: Simplify right side
    557,321.72x = 282,292,515,810.36
  5. Step 5: Solve for x
    x = 282,292,515,810.36/557,321.72
  6. Step 6: Final answer
    x = 506,516.27

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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.