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Finding the Fourth Proportional to 456,857.96, 630,171.54 and 366,430.97

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Solution

The fourth proportional to 456,857.96, 630,171.54 and 366,430.97 is: 505,440.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,857.96 : 630,171.54 = 366,430.97 : x
  2. Step 2: Convert to fraction form
    456,857.96/630,171.54 = 366,430.97/x
  3. Step 3: Cross multiply
    456,857.96x = 630,171.54 × 366,430.97
  4. Step 4: Simplify right side
    456,857.96x = 230,914,365,517.74
  5. Step 5: Solve for x
    x = 230,914,365,517.74/456,857.96
  6. Step 6: Final answer
    x = 505,440.18

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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.