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Finding the Fourth Proportional to 487,477.44, 672,706.42 and 269,680.59

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Solution

The fourth proportional to 487,477.44, 672,706.42 and 269,680.59 is: 372,152.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,477.44 : 672,706.42 = 269,680.59 : x
  2. Step 2: Convert to fraction form
    487,477.44/672,706.42 = 269,680.59/x
  3. Step 3: Cross multiply
    487,477.44x = 672,706.42 × 269,680.59
  4. Step 4: Simplify right side
    487,477.44x = 181,415,863,568.19
  5. Step 5: Solve for x
    x = 181,415,863,568.19/487,477.44
  6. Step 6: Final answer
    x = 372,152.33

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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.