Home / 771,991.76-1,065,317.47-427,832.69

Finding the Fourth Proportional to 771,991.76, 1,065,317.47 and 427,832.69

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Solution

The fourth proportional to 771,991.76, 1,065,317.47 and 427,832.69 is: 590,391.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,991.76 : 1,065,317.47 = 427,832.69 : x
  2. Step 2: Convert to fraction form
    771,991.76/1,065,317.47 = 427,832.69/x
  3. Step 3: Cross multiply
    771,991.76x = 1,065,317.47 × 427,832.69
  4. Step 4: Simplify right side
    771,991.76x = 455,777,632,497.93
  5. Step 5: Solve for x
    x = 455,777,632,497.93/771,991.76
  6. Step 6: Final answer
    x = 590,391.83

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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.