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Finding the Fourth Proportional to 569,997.20, 854,563.80 and 289,715.60

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Solution

The fourth proportional to 569,997.20, 854,563.80 and 289,715.60 is: 434,353.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,997.20 : 854,563.80 = 289,715.60 : x
  2. Step 2: Convert to fraction form
    569,997.20/854,563.80 = 289,715.60/x
  3. Step 3: Cross multiply
    569,997.20x = 854,563.80 × 289,715.60
  4. Step 4: Simplify right side
    569,997.20x = 247,580,464,055.28
  5. Step 5: Solve for x
    x = 247,580,464,055.28/569,997.20
  6. Step 6: Final answer
    x = 434,353.82

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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.