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Finding the Fourth Proportional to 579,274.88, 869,381.76 and 298,872.32

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Solution

The fourth proportional to 579,274.88, 869,381.76 and 298,872.32 is: 448,550.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,274.88 : 869,381.76 = 298,872.32 : x
  2. Step 2: Convert to fraction form
    579,274.88/869,381.76 = 298,872.32/x
  3. Step 3: Cross multiply
    579,274.88x = 869,381.76 × 298,872.32
  4. Step 4: Simplify right side
    579,274.88x = 259,834,143,576.88
  5. Step 5: Solve for x
    x = 259,834,143,576.88/579,274.88
  6. Step 6: Final answer
    x = 448,550.68

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1.5x scale

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.