Home / 455,823.56-629,439.99-284,034.72

Finding the Fourth Proportional to 455,823.56, 629,439.99 and 284,034.72

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Solution

The fourth proportional to 455,823.56, 629,439.99 and 284,034.72 is: 392,219.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,823.56 : 629,439.99 = 284,034.72 : x
  2. Step 2: Convert to fraction form
    455,823.56/629,439.99 = 284,034.72/x
  3. Step 3: Cross multiply
    455,823.56x = 629,439.99 × 284,034.72
  4. Step 4: Simplify right side
    455,823.56x = 178,782,811,316.45
  5. Step 5: Solve for x
    x = 178,782,811,316.45/455,823.56
  6. Step 6: Final answer
    x = 392,219.33

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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.