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Finding the Fourth Proportional to 646,258.14, 891,871.56 and 359,771.94

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Solution

The fourth proportional to 646,258.14, 891,871.56 and 359,771.94 is: 496,504.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,258.14 : 891,871.56 = 359,771.94 : x
  2. Step 2: Convert to fraction form
    646,258.14/891,871.56 = 359,771.94/x
  3. Step 3: Cross multiply
    646,258.14x = 891,871.56 × 359,771.94
  4. Step 4: Simplify right side
    646,258.14x = 320,870,361,372.03
  5. Step 5: Solve for x
    x = 320,870,361,372.03/646,258.14
  6. Step 6: Final answer
    x = 496,504.94

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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.