Home / 427,577.87-590,017.26-289,475.85

Finding the Fourth Proportional to 427,577.87, 590,017.26 and 289,475.85

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Solution

The fourth proportional to 427,577.87, 590,017.26 and 289,475.85 is: 399,449.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,577.87 : 590,017.26 = 289,475.85 : x
  2. Step 2: Convert to fraction form
    427,577.87/590,017.26 = 289,475.85/x
  3. Step 3: Cross multiply
    427,577.87x = 590,017.26 × 289,475.85
  4. Step 4: Simplify right side
    427,577.87x = 170,795,751,151.27
  5. Step 5: Solve for x
    x = 170,795,751,151.27/427,577.87
  6. Step 6: Final answer
    x = 399,449.46

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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.