Home / 634,273.78-951,622.16-421,879.02

Finding the Fourth Proportional to 634,273.78, 951,622.16 and 421,879.02

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Solution

The fourth proportional to 634,273.78, 951,622.16 and 421,879.02 is: 632,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,273.78 : 951,622.16 = 421,879.02 : x
  2. Step 2: Convert to fraction form
    634,273.78/951,622.16 = 421,879.02/x
  3. Step 3: Cross multiply
    634,273.78x = 951,622.16 × 421,879.02
  4. Step 4: Simplify right side
    634,273.78x = 401,469,424,271.08
  5. Step 5: Solve for x
    x = 401,469,424,271.08/634,273.78
  6. Step 6: Final answer
    x = 632,959.20

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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.