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Finding the Fourth Proportional to 401,520.51, 554,749.16 and 341,723.07

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Solution

The fourth proportional to 401,520.51, 554,749.16 and 341,723.07 is: 472,131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,520.51 : 554,749.16 = 341,723.07 : x
  2. Step 2: Convert to fraction form
    401,520.51/554,749.16 = 341,723.07/x
  3. Step 3: Cross multiply
    401,520.51x = 554,749.16 × 341,723.07
  4. Step 4: Simplify right side
    401,520.51x = 189,570,584,326.51
  5. Step 5: Solve for x
    x = 189,570,584,326.51/401,520.51
  6. Step 6: Final answer
    x = 472,131.76

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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.