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Finding the Fourth Proportional to 631,001.75, 871,703.57 and 545,971.19

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Solution

The fourth proportional to 631,001.75, 871,703.57 and 545,971.19 is: 754,237.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,001.75 : 871,703.57 = 545,971.19 : x
  2. Step 2: Convert to fraction form
    631,001.75/871,703.57 = 545,971.19/x
  3. Step 3: Cross multiply
    631,001.75x = 871,703.57 × 545,971.19
  4. Step 4: Simplify right side
    631,001.75x = 475,925,032,446.56
  5. Step 5: Solve for x
    x = 475,925,032,446.56/631,001.75
  6. Step 6: Final answer
    x = 754,237.27

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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.