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Finding the Fourth Proportional to 631,262.74, 871,142.58 and 344,783.51

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Solution

The fourth proportional to 631,262.74, 871,142.58 and 344,783.51 is: 475,801.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,262.74 : 871,142.58 = 344,783.51 : x
  2. Step 2: Convert to fraction form
    631,262.74/871,142.58 = 344,783.51/x
  3. Step 3: Cross multiply
    631,262.74x = 871,142.58 × 344,783.51
  4. Step 4: Simplify right side
    631,262.74x = 300,355,599,258.57
  5. Step 5: Solve for x
    x = 300,355,599,258.57/631,262.74
  6. Step 6: Final answer
    x = 475,801.25

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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.