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Finding the Fourth Proportional to 636,152.34, 877,893.14 and 349,690.88

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Solution

The fourth proportional to 636,152.34, 877,893.14 and 349,690.88 is: 482,575.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,152.34 : 877,893.14 = 349,690.88 : x
  2. Step 2: Convert to fraction form
    636,152.34/877,893.14 = 349,690.88/x
  3. Step 3: Cross multiply
    636,152.34x = 877,893.14 × 349,690.88
  4. Step 4: Simplify right side
    636,152.34x = 306,991,224,672.56
  5. Step 5: Solve for x
    x = 306,991,224,672.56/636,152.34
  6. Step 6: Final answer
    x = 482,575.01

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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.