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Finding the Fourth Proportional to 559,635.50, 772,274.45 and 304,981.22

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Solution

The fourth proportional to 559,635.50, 772,274.45 and 304,981.22 is: 420,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,635.50 : 772,274.45 = 304,981.22 : x
  2. Step 2: Convert to fraction form
    559,635.50/772,274.45 = 304,981.22/x
  3. Step 3: Cross multiply
    559,635.50x = 772,274.45 × 304,981.22
  4. Step 4: Simplify right side
    559,635.50x = 235,529,203,935.83
  5. Step 5: Solve for x
    x = 235,529,203,935.83/559,635.50
  6. Step 6: Final answer
    x = 420,861.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.