Home / 622,138.42-932,340.09-470,210.78

Finding the Fourth Proportional to 622,138.42, 932,340.09 and 470,210.78

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Solution

The fourth proportional to 622,138.42, 932,340.09 and 470,210.78 is: 704,660.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,138.42 : 932,340.09 = 470,210.78 : x
  2. Step 2: Convert to fraction form
    622,138.42/932,340.09 = 470,210.78/x
  3. Step 3: Cross multiply
    622,138.42x = 932,340.09 × 470,210.78
  4. Step 4: Simplify right side
    622,138.42x = 438,396,357,447.90
  5. Step 5: Solve for x
    x = 438,396,357,447.90/622,138.42
  6. Step 6: Final answer
    x = 704,660.48

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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.