Home / 1,435,745.12-1,981,341.55-791,188.38

Finding the Fourth Proportional to 1,435,745.12, 1,981,341.55 and 791,188.38

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Solution

The fourth proportional to 1,435,745.12, 1,981,341.55 and 791,188.38 is: 1,091,847.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,745.12 : 1,981,341.55 = 791,188.38 : x
  2. Step 2: Convert to fraction form
    1,435,745.12/1,981,341.55 = 791,188.38/x
  3. Step 3: Cross multiply
    1,435,745.12x = 1,981,341.55 × 791,188.38
  4. Step 4: Simplify right side
    1,435,745.12x = 1,567,614,411,171.19
  5. Step 5: Solve for x
    x = 1,567,614,411,171.19/1,435,745.12
  6. Step 6: Final answer
    x = 1,091,847.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.