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Finding the Fourth Proportional to 631,242.51, 871,133.53 and 344,776.11

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Solution

The fourth proportional to 631,242.51, 871,133.53 and 344,776.11 is: 475,801.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,242.51 : 871,133.53 = 344,776.11 : x
  2. Step 2: Convert to fraction form
    631,242.51/871,133.53 = 344,776.11/x
  3. Step 3: Cross multiply
    631,242.51x = 871,133.53 × 344,776.11
  4. Step 4: Simplify right side
    631,242.51x = 300,346,029,763.97
  5. Step 5: Solve for x
    x = 300,346,029,763.97/631,242.51
  6. Step 6: Final answer
    x = 475,801.34

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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.