Home / 1,243,816.54-1,865,735.26-345,328.34

Finding the Fourth Proportional to 1,243,816.54, 1,865,735.26 and 345,328.34

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Solution

The fourth proportional to 1,243,816.54, 1,865,735.26 and 345,328.34 is: 517,995.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,816.54 : 1,865,735.26 = 345,328.34 : x
  2. Step 2: Convert to fraction form
    1,243,816.54/1,865,735.26 = 345,328.34/x
  3. Step 3: Cross multiply
    1,243,816.54x = 1,865,735.26 × 345,328.34
  4. Step 4: Simplify right side
    1,243,816.54x = 644,291,260,215.27
  5. Step 5: Solve for x
    x = 644,291,260,215.27/1,243,816.54
  6. Step 6: Final answer
    x = 517,995.41

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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.