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Finding the Fourth Proportional to 569,830.20, 854,745.30 and 478,591.80

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Solution

The fourth proportional to 569,830.20, 854,745.30 and 478,591.80 is: 717,887.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,830.20 : 854,745.30 = 478,591.80 : x
  2. Step 2: Convert to fraction form
    569,830.20/854,745.30 = 478,591.80/x
  3. Step 3: Cross multiply
    569,830.20x = 854,745.30 × 478,591.80
  4. Step 4: Simplify right side
    569,830.20x = 409,074,091,668.54
  5. Step 5: Solve for x
    x = 409,074,091,668.54/569,830.20
  6. Step 6: Final answer
    x = 717,887.70

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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.