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Finding the Fourth Proportional to 558,375.60, 837,563.40 and 345,799.20

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Solution

The fourth proportional to 558,375.60, 837,563.40 and 345,799.20 is: 518,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,375.60 : 837,563.40 = 345,799.20 : x
  2. Step 2: Convert to fraction form
    558,375.60/837,563.40 = 345,799.20/x
  3. Step 3: Cross multiply
    558,375.60x = 837,563.40 × 345,799.20
  4. Step 4: Simplify right side
    558,375.60x = 289,628,753,669.28
  5. Step 5: Solve for x
    x = 289,628,753,669.28/558,375.60
  6. Step 6: Final answer
    x = 518,698.80

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Similar ratio
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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.