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Finding the Fourth Proportional to 539,678.88, 744,819.84 and 448,874.64

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Solution

The fourth proportional to 539,678.88, 744,819.84 and 448,874.64 is: 619,499.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,678.88 : 744,819.84 = 448,874.64 : x
  2. Step 2: Convert to fraction form
    539,678.88/744,819.84 = 448,874.64/x
  3. Step 3: Cross multiply
    539,678.88x = 744,819.84 × 448,874.64
  4. Step 4: Simplify right side
    539,678.88x = 334,330,737,544.86
  5. Step 5: Solve for x
    x = 334,330,737,544.86/539,678.88
  6. Step 6: Final answer
    x = 619,499.39

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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.