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Finding the Fourth Proportional to 579,291.88, 869,407.26 and 298,889.32

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Solution

The fourth proportional to 579,291.88, 869,407.26 and 298,889.32 is: 448,576.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,291.88 : 869,407.26 = 298,889.32 : x
  2. Step 2: Convert to fraction form
    579,291.88/869,407.26 = 298,889.32/x
  3. Step 3: Cross multiply
    579,291.88x = 869,407.26 × 298,889.32
  4. Step 4: Simplify right side
    579,291.88x = 259,856,544,744.46
  5. Step 5: Solve for x
    x = 259,856,544,744.46/579,291.88
  6. Step 6: Final answer
    x = 448,576.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.