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Finding the Fourth Proportional to 647,446.70, 893,480.19 and 360,984.62

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Solution

The fourth proportional to 647,446.70, 893,480.19 and 360,984.62 is: 498,160.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,446.70 : 893,480.19 = 360,984.62 : x
  2. Step 2: Convert to fraction form
    647,446.70/893,480.19 = 360,984.62/x
  3. Step 3: Cross multiply
    647,446.70x = 893,480.19 × 360,984.62
  4. Step 4: Simplify right side
    647,446.70x = 322,532,606,864.68
  5. Step 5: Solve for x
    x = 322,532,606,864.68/647,446.70
  6. Step 6: Final answer
    x = 498,160.86

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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.