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Finding the Fourth Proportional to 909,855.81, 1,364,958.66 and 348,846.57

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Solution

The fourth proportional to 909,855.81, 1,364,958.66 and 348,846.57 is: 523,336.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,855.81 : 1,364,958.66 = 348,846.57 : x
  2. Step 2: Convert to fraction form
    909,855.81/1,364,958.66 = 348,846.57/x
  3. Step 3: Cross multiply
    909,855.81x = 1,364,958.66 × 348,846.57
  4. Step 4: Simplify right side
    909,855.81x = 476,161,146,732.80
  5. Step 5: Solve for x
    x = 476,161,146,732.80/909,855.81
  6. Step 6: Final answer
    x = 523,336.93

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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.