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Finding the Fourth Proportional to 631,507.92, 871,435.44 and 344,967.18

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Solution

The fourth proportional to 631,507.92, 871,435.44 and 344,967.18 is: 476,029.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,507.92 : 871,435.44 = 344,967.18 : x
  2. Step 2: Convert to fraction form
    631,507.92/871,435.44 = 344,967.18/x
  3. Step 3: Cross multiply
    631,507.92x = 871,435.44 × 344,967.18
  4. Step 4: Simplify right side
    631,507.92x = 300,616,626,288.86
  5. Step 5: Solve for x
    x = 300,616,626,288.86/631,507.92
  6. Step 6: Final answer
    x = 476,029.86

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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.