Home / 505,997.32-757,421.34-318,615.16

Finding the Fourth Proportional to 505,997.32, 757,421.34 and 318,615.16

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Solution

The fourth proportional to 505,997.32, 757,421.34 and 318,615.16 is: 476,931.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,997.32 : 757,421.34 = 318,615.16 : x
  2. Step 2: Convert to fraction form
    505,997.32/757,421.34 = 318,615.16/x
  3. Step 3: Cross multiply
    505,997.32x = 757,421.34 × 318,615.16
  4. Step 4: Simplify right side
    505,997.32x = 241,325,921,431.51
  5. Step 5: Solve for x
    x = 241,325,921,431.51/505,997.32
  6. Step 6: Final answer
    x = 476,931.22

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1.5x scale

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.