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Finding the Fourth Proportional to 647,730.34, 893,579.04 and 375,640.61

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Solution

The fourth proportional to 647,730.34, 893,579.04 and 375,640.61 is: 518,216.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,730.34 : 893,579.04 = 375,640.61 : x
  2. Step 2: Convert to fraction form
    647,730.34/893,579.04 = 375,640.61/x
  3. Step 3: Cross multiply
    647,730.34x = 893,579.04 × 375,640.61
  4. Step 4: Simplify right side
    647,730.34x = 335,664,571,200.92
  5. Step 5: Solve for x
    x = 335,664,571,200.92/647,730.34
  6. Step 6: Final answer
    x = 518,216.54

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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.