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Finding the Fourth Proportional to 610,679.51, 842,751.23 and 338,738.54

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Solution

The fourth proportional to 610,679.51, 842,751.23 and 338,738.54 is: 467,466.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,679.51 : 842,751.23 = 338,738.54 : x
  2. Step 2: Convert to fraction form
    610,679.51/842,751.23 = 338,738.54/x
  3. Step 3: Cross multiply
    610,679.51x = 842,751.23 × 338,738.54
  4. Step 4: Simplify right side
    610,679.51x = 285,472,321,646.59
  5. Step 5: Solve for x
    x = 285,472,321,646.59/610,679.51
  6. Step 6: Final answer
    x = 467,466.68

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1.5x scale

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.