Home / 864,231.72-1,192,639.86-477,047.28

Finding the Fourth Proportional to 864,231.72, 1,192,639.86 and 477,047.28

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Solution

The fourth proportional to 864,231.72, 1,192,639.86 and 477,047.28 is: 658,325.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,231.72 : 1,192,639.86 = 477,047.28 : x
  2. Step 2: Convert to fraction form
    864,231.72/1,192,639.86 = 477,047.28/x
  3. Step 3: Cross multiply
    864,231.72x = 1,192,639.86 × 477,047.28
  4. Step 4: Simplify right side
    864,231.72x = 568,945,601,232.58
  5. Step 5: Solve for x
    x = 568,945,601,232.58/864,231.72
  6. Step 6: Final answer
    x = 658,325.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.