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Finding the Fourth Proportional to 633,321.32, 873,976.74 and 346,841.96

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Solution

The fourth proportional to 633,321.32, 873,976.74 and 346,841.96 is: 478,638.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,321.32 : 873,976.74 = 346,841.96 : x
  2. Step 2: Convert to fraction form
    633,321.32/873,976.74 = 346,841.96/x
  3. Step 3: Cross multiply
    633,321.32x = 873,976.74 × 346,841.96
  4. Step 4: Simplify right side
    633,321.32x = 303,131,805,496.01
  5. Step 5: Solve for x
    x = 303,131,805,496.01/633,321.32
  6. Step 6: Final answer
    x = 478,638.25

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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.