Home / 830,440.05-1,245,660.02-199,353.86

Finding the Fourth Proportional to 830,440.05, 1,245,660.02 and 199,353.86

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Solution

The fourth proportional to 830,440.05, 1,245,660.02 and 199,353.86 is: 299,030.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,440.05 : 1,245,660.02 = 199,353.86 : x
  2. Step 2: Convert to fraction form
    830,440.05/1,245,660.02 = 199,353.86/x
  3. Step 3: Cross multiply
    830,440.05x = 1,245,660.02 × 199,353.86
  4. Step 4: Simplify right side
    830,440.05x = 248,327,131,428.41
  5. Step 5: Solve for x
    x = 248,327,131,428.41/830,440.05
  6. Step 6: Final answer
    x = 299,030.78

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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.