Home / 1,407,944.85-2,112,128.03-509,596.77

Finding the Fourth Proportional to 1,407,944.85, 2,112,128.03 and 509,596.77

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Solution

The fourth proportional to 1,407,944.85, 2,112,128.03 and 509,596.77 is: 764,471.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,944.85 : 2,112,128.03 = 509,596.77 : x
  2. Step 2: Convert to fraction form
    1,407,944.85/2,112,128.03 = 509,596.77/x
  3. Step 3: Cross multiply
    1,407,944.85x = 2,112,128.03 × 509,596.77
  4. Step 4: Simplify right side
    1,407,944.85x = 1,076,333,622,865.46
  5. Step 5: Solve for x
    x = 1,076,333,622,865.46/1,407,944.85
  6. Step 6: Final answer
    x = 764,471.44

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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.