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Finding the Fourth Proportional to 647,100.46, 892,957.76 and 356,696.02

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Solution

The fourth proportional to 647,100.46, 892,957.76 and 356,696.02 is: 492,217.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,100.46 : 892,957.76 = 356,696.02 : x
  2. Step 2: Convert to fraction form
    647,100.46/892,957.76 = 356,696.02/x
  3. Step 3: Cross multiply
    647,100.46x = 892,957.76 × 356,696.02
  4. Step 4: Simplify right side
    647,100.46x = 318,514,478,182.21
  5. Step 5: Solve for x
    x = 318,514,478,182.21/647,100.46
  6. Step 6: Final answer
    x = 492,217.98

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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.