Home / 634,272.78-951,620.66-421,878.02

Finding the Fourth Proportional to 634,272.78, 951,620.66 and 421,878.02

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Solution

The fourth proportional to 634,272.78, 951,620.66 and 421,878.02 is: 632,957.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,272.78 : 951,620.66 = 421,878.02 : x
  2. Step 2: Convert to fraction form
    634,272.78/951,620.66 = 421,878.02/x
  3. Step 3: Cross multiply
    634,272.78x = 951,620.66 × 421,878.02
  4. Step 4: Simplify right side
    634,272.78x = 401,467,839,831.89
  5. Step 5: Solve for x
    x = 401,467,839,831.89/634,272.78
  6. Step 6: Final answer
    x = 632,957.70

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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.