Home / 505,500.24-697,589.10-290,629.92

Finding the Fourth Proportional to 505,500.24, 697,589.10 and 290,629.92

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Solution

The fourth proportional to 505,500.24, 697,589.10 and 290,629.92 is: 401,068.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,500.24 : 697,589.10 = 290,629.92 : x
  2. Step 2: Convert to fraction form
    505,500.24/697,589.10 = 290,629.92/x
  3. Step 3: Cross multiply
    505,500.24x = 697,589.10 × 290,629.92
  4. Step 4: Simplify right side
    505,500.24x = 202,740,264,325.87
  5. Step 5: Solve for x
    x = 202,740,264,325.87/505,500.24
  6. Step 6: Final answer
    x = 401,068.58

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1.5x scale

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.