Home / 622,911.60-932,399.10-489,067.20

Finding the Fourth Proportional to 622,911.60, 932,399.10 and 489,067.20

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Solution

The fourth proportional to 622,911.60, 932,399.10 and 489,067.20 is: 732,055.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,911.60 : 932,399.10 = 489,067.20 : x
  2. Step 2: Convert to fraction form
    622,911.60/932,399.10 = 489,067.20/x
  3. Step 3: Cross multiply
    622,911.60x = 932,399.10 × 489,067.20
  4. Step 4: Simplify right side
    622,911.60x = 456,005,817,119.52
  5. Step 5: Solve for x
    x = 456,005,817,119.52/622,911.60
  6. Step 6: Final answer
    x = 732,055.43

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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.