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Finding the Fourth Proportional to 491,886.60, 737,830.05 and 379,730.55

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Solution

The fourth proportional to 491,886.60, 737,830.05 and 379,730.55 is: 569,595.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,886.60 : 737,830.05 = 379,730.55 : x
  2. Step 2: Convert to fraction form
    491,886.60/737,830.05 = 379,730.55/x
  3. Step 3: Cross multiply
    491,886.60x = 737,830.05 × 379,730.55
  4. Step 4: Simplify right side
    491,886.60x = 280,176,610,693.03
  5. Step 5: Solve for x
    x = 280,176,610,693.03/491,886.60
  6. Step 6: Final answer
    x = 569,595.94

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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.