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Finding the Fourth Proportional to 424,435.23, 636,832.86 and 199,790.67

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Solution

The fourth proportional to 424,435.23, 636,832.86 and 199,790.67 is: 299,770.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,435.23 : 636,832.86 = 199,790.67 : x
  2. Step 2: Convert to fraction form
    424,435.23/636,832.86 = 199,790.67/x
  3. Step 3: Cross multiply
    424,435.23x = 636,832.86 × 199,790.67
  4. Step 4: Simplify right side
    424,435.23x = 127,233,263,777.42
  5. Step 5: Solve for x
    x = 127,233,263,777.42/424,435.23
  6. Step 6: Final answer
    x = 299,770.74

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1.5x scale

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.