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Finding the Fourth Proportional to 482,496.01, 665,831.64 and 278,540.04

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Solution

The fourth proportional to 482,496.01, 665,831.64 and 278,540.04 is: 384,377.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,496.01 : 665,831.64 = 278,540.04 : x
  2. Step 2: Convert to fraction form
    482,496.01/665,831.64 = 278,540.04/x
  3. Step 3: Cross multiply
    482,496.01x = 665,831.64 × 278,540.04
  4. Step 4: Simplify right side
    482,496.01x = 185,460,771,638.87
  5. Step 5: Solve for x
    x = 185,460,771,638.87/482,496.01
  6. Step 6: Final answer
    x = 384,377.83

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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.