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Finding the Fourth Proportional to 646,800.53, 892,573.52 and 374,893.72

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Solution

The fourth proportional to 646,800.53, 892,573.52 and 374,893.72 is: 517,346.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,800.53 : 892,573.52 = 374,893.72 : x
  2. Step 2: Convert to fraction form
    646,800.53/892,573.52 = 374,893.72/x
  3. Step 3: Cross multiply
    646,800.53x = 892,573.52 × 374,893.72
  4. Step 4: Simplify right side
    646,800.53x = 334,620,203,180.39
  5. Step 5: Solve for x
    x = 334,620,203,180.39/646,800.53
  6. Step 6: Final answer
    x = 517,346.83

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1.5x scale

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.