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Finding the Fourth Proportional to 631,368.59, 871,256.07 and 344,833.31

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Solution

The fourth proportional to 631,368.59, 871,256.07 and 344,833.31 is: 475,852.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,368.59 : 871,256.07 = 344,833.31 : x
  2. Step 2: Convert to fraction form
    631,368.59/871,256.07 = 344,833.31/x
  3. Step 3: Cross multiply
    631,368.59x = 871,256.07 × 344,833.31
  4. Step 4: Simplify right side
    631,368.59x = 300,438,116,653.83
  5. Step 5: Solve for x
    x = 300,438,116,653.83/631,368.59
  6. Step 6: Final answer
    x = 475,852.18

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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.