Home / 686,516.13-1,029,842.45-254,349.21

Finding the Fourth Proportional to 686,516.13, 1,029,842.45 and 254,349.21

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Solution

The fourth proportional to 686,516.13, 1,029,842.45 and 254,349.21 is: 381,549.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,516.13 : 1,029,842.45 = 254,349.21 : x
  2. Step 2: Convert to fraction form
    686,516.13/1,029,842.45 = 254,349.21/x
  3. Step 3: Cross multiply
    686,516.13x = 1,029,842.45 × 254,349.21
  4. Step 4: Simplify right side
    686,516.13x = 261,939,612,310.22
  5. Step 5: Solve for x
    x = 261,939,612,310.22/686,516.13
  6. Step 6: Final answer
    x = 381,549.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.