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Finding the Fourth Proportional to 647,144.41, 893,062.29 and 375,373.21

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Solution

The fourth proportional to 647,144.41, 893,062.29 and 375,373.21 is: 518,016.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,144.41 : 893,062.29 = 375,373.21 : x
  2. Step 2: Convert to fraction form
    647,144.41/893,062.29 = 375,373.21/x
  3. Step 3: Cross multiply
    647,144.41x = 893,062.29 × 375,373.21
  4. Step 4: Simplify right side
    647,144.41x = 335,231,658,527.25
  5. Step 5: Solve for x
    x = 335,231,658,527.25/647,144.41
  6. Step 6: Final answer
    x = 518,016.77

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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.