Home / 459,072.27-688,648.09-126,648.27

Finding the Fourth Proportional to 459,072.27, 688,648.09 and 126,648.27

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Solution

The fourth proportional to 459,072.27, 688,648.09 and 126,648.27 is: 189,983.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,072.27 : 688,648.09 = 126,648.27 : x
  2. Step 2: Convert to fraction form
    459,072.27/688,648.09 = 126,648.27/x
  3. Step 3: Cross multiply
    459,072.27x = 688,648.09 × 126,648.27
  4. Step 4: Simplify right side
    459,072.27x = 87,216,088,604.06
  5. Step 5: Solve for x
    x = 87,216,088,604.06/459,072.27
  6. Step 6: Final answer
    x = 189,983.35

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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.