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Finding the Fourth Proportional to 341,290.20, 512,919.45 and 297,987.60

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Solution

The fourth proportional to 341,290.20, 512,919.45 and 297,987.60 is: 447,840.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,290.20 : 512,919.45 = 297,987.60 : x
  2. Step 2: Convert to fraction form
    341,290.20/512,919.45 = 297,987.60/x
  3. Step 3: Cross multiply
    341,290.20x = 512,919.45 × 297,987.60
  4. Step 4: Simplify right side
    341,290.20x = 152,843,635,898.82
  5. Step 5: Solve for x
    x = 152,843,635,898.82/341,290.20
  6. Step 6: Final answer
    x = 447,840.68

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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.