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Finding the Fourth Proportional to 622,728.60, 932,124.60 and 445,581.60

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Solution

The fourth proportional to 622,728.60, 932,124.60 and 445,581.60 is: 666,964.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,728.60 : 932,124.60 = 445,581.60 : x
  2. Step 2: Convert to fraction form
    622,728.60/932,124.60 = 445,581.60/x
  3. Step 3: Cross multiply
    622,728.60x = 932,124.60 × 445,581.60
  4. Step 4: Simplify right side
    622,728.60x = 415,337,570,667.36
  5. Step 5: Solve for x
    x = 415,337,570,667.36/622,728.60
  6. Step 6: Final answer
    x = 666,964.02

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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.