Home / 1,190,082-1,785,247.55-391,425.82

Finding the Fourth Proportional to 1,190,082, 1,785,247.55 and 391,425.82

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Solution

The fourth proportional to 1,190,082, 1,785,247.55 and 391,425.82 is: 587,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,082 : 1,785,247.55 = 391,425.82 : x
  2. Step 2: Convert to fraction form
    1,190,082/1,785,247.55 = 391,425.82/x
  3. Step 3: Cross multiply
    1,190,082x = 1,785,247.55 × 391,425.82
  4. Step 4: Simplify right side
    1,190,082x = 698,791,986,161.74
  5. Step 5: Solve for x
    x = 698,791,986,161.74/1,190,082
  6. Step 6: Final answer
    x = 587,179.70

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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.