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Finding the Fourth Proportional to 624,559.76, 861,842.27 and 352,693.79

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Solution

The fourth proportional to 624,559.76, 861,842.27 and 352,693.79 is: 486,689.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,559.76 : 861,842.27 = 352,693.79 : x
  2. Step 2: Convert to fraction form
    624,559.76/861,842.27 = 352,693.79/x
  3. Step 3: Cross multiply
    624,559.76x = 861,842.27 × 352,693.79
  4. Step 4: Simplify right side
    624,559.76x = 303,966,414,825.03
  5. Step 5: Solve for x
    x = 303,966,414,825.03/624,559.76
  6. Step 6: Final answer
    x = 486,689.08

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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.