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Finding the Fourth Proportional to 520,620.66, 780,733.89 and 283,834.44

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Solution

The fourth proportional to 520,620.66, 780,733.89 and 283,834.44 is: 425,644.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,620.66 : 780,733.89 = 283,834.44 : x
  2. Step 2: Convert to fraction form
    520,620.66/780,733.89 = 283,834.44/x
  3. Step 3: Cross multiply
    520,620.66x = 780,733.89 × 283,834.44
  4. Step 4: Simplify right side
    520,620.66x = 221,599,166,457.17
  5. Step 5: Solve for x
    x = 221,599,166,457.17/520,620.66
  6. Step 6: Final answer
    x = 425,644.20

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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.