Home / 634,940.56-876,257.40-419,707.36

Finding the Fourth Proportional to 634,940.56, 876,257.40 and 419,707.36

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Solution

The fourth proportional to 634,940.56, 876,257.40 and 419,707.36 is: 579,222.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,940.56 : 876,257.40 = 419,707.36 : x
  2. Step 2: Convert to fraction form
    634,940.56/876,257.40 = 419,707.36/x
  3. Step 3: Cross multiply
    634,940.56x = 876,257.40 × 419,707.36
  4. Step 4: Simplify right side
    634,940.56x = 367,771,680,034.46
  5. Step 5: Solve for x
    x = 367,771,680,034.46/634,940.56
  6. Step 6: Final answer
    x = 579,222.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.