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Finding the Fourth Proportional to 403,000.20, 604,889.10 and 203,545.80

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Solution

The fourth proportional to 403,000.20, 604,889.10 and 203,545.80 is: 305,515.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,000.20 : 604,889.10 = 203,545.80 : x
  2. Step 2: Convert to fraction form
    403,000.20/604,889.10 = 203,545.80/x
  3. Step 3: Cross multiply
    403,000.20x = 604,889.10 × 203,545.80
  4. Step 4: Simplify right side
    403,000.20x = 123,122,635,770.78
  5. Step 5: Solve for x
    x = 123,122,635,770.78/403,000.20
  6. Step 6: Final answer
    x = 305,515.07

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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.