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Finding the Fourth Proportional to 482,394.35, 665,596.94 and 278,402.06

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Solution

The fourth proportional to 482,394.35, 665,596.94 and 278,402.06 is: 384,132.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,394.35 : 665,596.94 = 278,402.06 : x
  2. Step 2: Convert to fraction form
    482,394.35/665,596.94 = 278,402.06/x
  3. Step 3: Cross multiply
    482,394.35x = 665,596.94 × 278,402.06
  4. Step 4: Simplify right side
    482,394.35x = 185,303,554,505.70
  5. Step 5: Solve for x
    x = 185,303,554,505.70/482,394.35
  6. Step 6: Final answer
    x = 384,132.93

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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.