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Finding the Fourth Proportional to 821,751.52, 1,230,522.90 and 568,681.60

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Solution

The fourth proportional to 821,751.52, 1,230,522.90 and 568,681.60 is: 851,566.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,751.52 : 1,230,522.90 = 568,681.60 : x
  2. Step 2: Convert to fraction form
    821,751.52/1,230,522.90 = 568,681.60/x
  3. Step 3: Cross multiply
    821,751.52x = 1,230,522.90 × 568,681.60
  4. Step 4: Simplify right side
    821,751.52x = 699,775,731,608.64
  5. Step 5: Solve for x
    x = 699,775,731,608.64/821,751.52
  6. Step 6: Final answer
    x = 851,566.09

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1.5x scale

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.