Home / 1,291,421.94-1,936,462.67-380,486.17

Finding the Fourth Proportional to 1,291,421.94, 1,936,462.67 and 380,486.17

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Solution

The fourth proportional to 1,291,421.94, 1,936,462.67 and 380,486.17 is: 570,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,421.94 : 1,936,462.67 = 380,486.17 : x
  2. Step 2: Convert to fraction form
    1,291,421.94/1,936,462.67 = 380,486.17/x
  3. Step 3: Cross multiply
    1,291,421.94x = 1,936,462.67 × 380,486.17
  4. Step 4: Simplify right side
    1,291,421.94x = 736,797,264,656.27
  5. Step 5: Solve for x
    x = 736,797,264,656.27/1,291,421.94
  6. Step 6: Final answer
    x = 570,531.79

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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.