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Finding the Fourth Proportional to 456,812.23, 630,393.25 and 252,858.78

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Solution

The fourth proportional to 456,812.23, 630,393.25 and 252,858.78 is: 348,940.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,812.23 : 630,393.25 = 252,858.78 : x
  2. Step 2: Convert to fraction form
    456,812.23/630,393.25 = 252,858.78/x
  3. Step 3: Cross multiply
    456,812.23x = 630,393.25 × 252,858.78
  4. Step 4: Simplify right side
    456,812.23x = 159,400,468,115.24
  5. Step 5: Solve for x
    x = 159,400,468,115.24/456,812.23
  6. Step 6: Final answer
    x = 348,940.89

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1.5x scale

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.