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Finding the Fourth Proportional to 508,456.72, 701,670.38 and 282,101.68

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Solution

The fourth proportional to 508,456.72, 701,670.38 and 282,101.68 is: 389,300.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,456.72 : 701,670.38 = 282,101.68 : x
  2. Step 2: Convert to fraction form
    508,456.72/701,670.38 = 282,101.68/x
  3. Step 3: Cross multiply
    508,456.72x = 701,670.38 × 282,101.68
  4. Step 4: Simplify right side
    508,456.72x = 197,942,393,004.24
  5. Step 5: Solve for x
    x = 197,942,393,004.24/508,456.72
  6. Step 6: Final answer
    x = 389,300.38

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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.