Home / 1,471,090.89-2,206,633.08-391,603.69

Finding the Fourth Proportional to 1,471,090.89, 2,206,633.08 and 391,603.69

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Solution

The fourth proportional to 1,471,090.89, 2,206,633.08 and 391,603.69 is: 587,404.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471,090.89 : 2,206,633.08 = 391,603.69 : x
  2. Step 2: Convert to fraction form
    1,471,090.89/2,206,633.08 = 391,603.69/x
  3. Step 3: Cross multiply
    1,471,090.89x = 2,206,633.08 × 391,603.69
  4. Step 4: Simplify right side
    1,471,090.89x = 864,125,656,604.07
  5. Step 5: Solve for x
    x = 864,125,656,604.07/1,471,090.89
  6. Step 6: Final answer
    x = 587,404.67

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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.