Home / 1,243,814.06-1,865,731.54-345,325.87

Finding the Fourth Proportional to 1,243,814.06, 1,865,731.54 and 345,325.87

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Solution

The fourth proportional to 1,243,814.06, 1,865,731.54 and 345,325.87 is: 517,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,814.06 : 1,865,731.54 = 345,325.87 : x
  2. Step 2: Convert to fraction form
    1,243,814.06/1,865,731.54 = 345,325.87/x
  3. Step 3: Cross multiply
    1,243,814.06x = 1,865,731.54 × 345,325.87
  4. Step 4: Simplify right side
    1,243,814.06x = 644,285,367,236.94
  5. Step 5: Solve for x
    x = 644,285,367,236.94/1,243,814.06
  6. Step 6: Final answer
    x = 517,991.71

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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.