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Finding the Fourth Proportional to 580,246.40, 868,987.20 and 356,297.60

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Solution

The fourth proportional to 580,246.40, 868,987.20 and 356,297.60 is: 533,597.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,246.40 : 868,987.20 = 356,297.60 : x
  2. Step 2: Convert to fraction form
    580,246.40/868,987.20 = 356,297.60/x
  3. Step 3: Cross multiply
    580,246.40x = 868,987.20 × 356,297.60
  4. Step 4: Simplify right side
    580,246.40x = 309,618,053,790.72
  5. Step 5: Solve for x
    x = 309,618,053,790.72/580,246.40
  6. Step 6: Final answer
    x = 533,597.54

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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.