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Finding the Fourth Proportional to 631,268.01, 871,149.81 and 344,788.77

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Solution

The fourth proportional to 631,268.01, 871,149.81 and 344,788.77 is: 475,808.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,268.01 : 871,149.81 = 344,788.77 : x
  2. Step 2: Convert to fraction form
    631,268.01/871,149.81 = 344,788.77/x
  3. Step 3: Cross multiply
    631,268.01x = 871,149.81 × 344,788.77
  4. Step 4: Simplify right side
    631,268.01x = 300,362,671,475.63
  5. Step 5: Solve for x
    x = 300,362,671,475.63/631,268.01
  6. Step 6: Final answer
    x = 475,808.48

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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.