Home / 668,944.80-1,002,056.40-415,447.20

Finding the Fourth Proportional to 668,944.80, 1,002,056.40 and 415,447.20

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Solution

The fourth proportional to 668,944.80, 1,002,056.40 and 415,447.20 is: 622,325.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,944.80 : 1,002,056.40 = 415,447.20 : x
  2. Step 2: Convert to fraction form
    668,944.80/1,002,056.40 = 415,447.20/x
  3. Step 3: Cross multiply
    668,944.80x = 1,002,056.40 × 415,447.20
  4. Step 4: Simplify right side
    668,944.80x = 416,301,525,622.08
  5. Step 5: Solve for x
    x = 416,301,525,622.08/668,944.80
  6. Step 6: Final answer
    x = 622,325.68

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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.