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Finding the Fourth Proportional to 624,562.76, 861,846.40 and 352,696.79

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Solution

The fourth proportional to 624,562.76, 861,846.40 and 352,696.79 is: 486,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,562.76 : 861,846.40 = 352,696.79 : x
  2. Step 2: Convert to fraction form
    624,562.76/861,846.40 = 352,696.79/x
  3. Step 3: Cross multiply
    624,562.76x = 861,846.40 × 352,696.79
  4. Step 4: Simplify right side
    624,562.76x = 303,970,458,753.06
  5. Step 5: Solve for x
    x = 303,970,458,753.06/624,562.76
  6. Step 6: Final answer
    x = 486,693.22

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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.