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Finding the Fourth Proportional to 620,896.52, 856,838 and 352,624.52

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Solution

The fourth proportional to 620,896.52, 856,838 and 352,624.52 is: 486,622.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,896.52 : 856,838 = 352,624.52 : x
  2. Step 2: Convert to fraction form
    620,896.52/856,838 = 352,624.52/x
  3. Step 3: Cross multiply
    620,896.52x = 856,838 × 352,624.52
  4. Step 4: Simplify right side
    620,896.52x = 302,142,088,467.76
  5. Step 5: Solve for x
    x = 302,142,088,467.76/620,896.52
  6. Step 6: Final answer
    x = 486,622.29

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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.