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Finding the Fourth Proportional to 528,705.36, 729,767.34 and 322,048.44

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Solution

The fourth proportional to 528,705.36, 729,767.34 and 322,048.44 is: 444,520.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,705.36 : 729,767.34 = 322,048.44 : x
  2. Step 2: Convert to fraction form
    528,705.36/729,767.34 = 322,048.44/x
  3. Step 3: Cross multiply
    528,705.36x = 729,767.34 × 322,048.44
  4. Step 4: Simplify right side
    528,705.36x = 235,020,433,409.95
  5. Step 5: Solve for x
    x = 235,020,433,409.95/528,705.36
  6. Step 6: Final answer
    x = 444,520.62

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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.