Home / 3,190,173.30-4,785,971.22-915,520.38

Finding the Fourth Proportional to 3,190,173.30, 4,785,971.22 and 915,520.38

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Solution

The fourth proportional to 3,190,173.30, 4,785,971.22 and 915,520.38 is: 1,373,484.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190,173.30 : 4,785,971.22 = 915,520.38 : x
  2. Step 2: Convert to fraction form
    3,190,173.30/4,785,971.22 = 915,520.38/x
  3. Step 3: Cross multiply
    3,190,173.30x = 4,785,971.22 × 915,520.38
  4. Step 4: Simplify right side
    3,190,173.30x = 4,381,654,190,003.46
  5. Step 5: Solve for x
    x = 4,381,654,190,003.46/3,190,173.30
  6. Step 6: Final answer
    x = 1,373,484.69

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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.