Home / 665,072.27-997,756.02-191,720.69

Finding the Fourth Proportional to 665,072.27, 997,756.02 and 191,720.69

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Solution

The fourth proportional to 665,072.27, 997,756.02 and 191,720.69 is: 287,623.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,072.27 : 997,756.02 = 191,720.69 : x
  2. Step 2: Convert to fraction form
    665,072.27/997,756.02 = 191,720.69/x
  3. Step 3: Cross multiply
    665,072.27x = 997,756.02 × 191,720.69
  4. Step 4: Simplify right side
    665,072.27x = 191,290,472,606.05
  5. Step 5: Solve for x
    x = 191,290,472,606.05/665,072.27
  6. Step 6: Final answer
    x = 287,623.59

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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.