Home / 431,110.23-646,000.13-273,006.54

Finding the Fourth Proportional to 431,110.23, 646,000.13 and 273,006.54

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Solution

The fourth proportional to 431,110.23, 646,000.13 and 273,006.54 is: 409,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,110.23 : 646,000.13 = 273,006.54 : x
  2. Step 2: Convert to fraction form
    431,110.23/646,000.13 = 273,006.54/x
  3. Step 3: Cross multiply
    431,110.23x = 646,000.13 × 273,006.54
  4. Step 4: Simplify right side
    431,110.23x = 176,362,258,965.82
  5. Step 5: Solve for x
    x = 176,362,258,965.82/431,110.23
  6. Step 6: Final answer
    x = 409,088.55

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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.