Home / 505,741.10-697,894.72-290,884.75

Finding the Fourth Proportional to 505,741.10, 697,894.72 and 290,884.75

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Solution

The fourth proportional to 505,741.10, 697,894.72 and 290,884.75 is: 401,404.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,741.10 : 697,894.72 = 290,884.75 : x
  2. Step 2: Convert to fraction form
    505,741.10/697,894.72 = 290,884.75/x
  3. Step 3: Cross multiply
    505,741.10x = 697,894.72 × 290,884.75
  4. Step 4: Simplify right side
    505,741.10x = 203,006,928,681.57
  5. Step 5: Solve for x
    x = 203,006,928,681.57/505,741.10
  6. Step 6: Final answer
    x = 401,404.85

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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.