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Finding the Fourth Proportional to 626,376.24, 864,401.60 and 339,896.32

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Solution

The fourth proportional to 626,376.24, 864,401.60 and 339,896.32 is: 469,058.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,376.24 : 864,401.60 = 339,896.32 : x
  2. Step 2: Convert to fraction form
    626,376.24/864,401.60 = 339,896.32/x
  3. Step 3: Cross multiply
    626,376.24x = 864,401.60 × 339,896.32
  4. Step 4: Simplify right side
    626,376.24x = 293,806,922,842.11
  5. Step 5: Solve for x
    x = 293,806,922,842.11/626,376.24
  6. Step 6: Final answer
    x = 469,058.22

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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.