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Finding the Fourth Proportional to 491,809.60, 737,714.40 and 255,613.60

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Solution

The fourth proportional to 491,809.60, 737,714.40 and 255,613.60 is: 383,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,809.60 : 737,714.40 = 255,613.60 : x
  2. Step 2: Convert to fraction form
    491,809.60/737,714.40 = 255,613.60/x
  3. Step 3: Cross multiply
    491,809.60x = 737,714.40 × 255,613.60
  4. Step 4: Simplify right side
    491,809.60x = 188,569,833,555.84
  5. Step 5: Solve for x
    x = 188,569,833,555.84/491,809.60
  6. Step 6: Final answer
    x = 383,420.40

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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.