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Finding the Fourth Proportional to 508,615.14, 701,890.71 and 282,260.64

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Solution

The fourth proportional to 508,615.14, 701,890.71 and 282,260.64 is: 389,520.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,615.14 : 701,890.71 = 282,260.64 : x
  2. Step 2: Convert to fraction form
    508,615.14/701,890.71 = 282,260.64/x
  3. Step 3: Cross multiply
    508,615.14x = 701,890.71 × 282,260.64
  4. Step 4: Simplify right side
    508,615.14x = 198,116,121,014.65
  5. Step 5: Solve for x
    x = 198,116,121,014.65/508,615.14
  6. Step 6: Final answer
    x = 389,520.69

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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.