Home / 3,190,168.82-4,785,964.47-915,515.88

Finding the Fourth Proportional to 3,190,168.82, 4,785,964.47 and 915,515.88

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Solution

The fourth proportional to 3,190,168.82, 4,785,964.47 and 915,515.88 is: 1,373,477.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190,168.82 : 4,785,964.47 = 915,515.88 : x
  2. Step 2: Convert to fraction form
    3,190,168.82/4,785,964.47 = 915,515.88/x
  3. Step 3: Cross multiply
    3,190,168.82x = 4,785,964.47 × 915,515.88
  4. Step 4: Simplify right side
    3,190,168.82x = 4,381,626,473,400.78
  5. Step 5: Solve for x
    x = 4,381,626,473,400.78/3,190,168.82
  6. Step 6: Final answer
    x = 1,373,477.93

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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.