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Finding the Fourth Proportional to 647,034.83, 892,911.60 and 375,263.88

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Solution

The fourth proportional to 647,034.83, 892,911.60 and 375,263.88 is: 517,866.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,034.83 : 892,911.60 = 375,263.88 : x
  2. Step 2: Convert to fraction form
    647,034.83/892,911.60 = 375,263.88/x
  3. Step 3: Cross multiply
    647,034.83x = 892,911.60 × 375,263.88
  4. Step 4: Simplify right side
    647,034.83x = 335,077,471,513.01
  5. Step 5: Solve for x
    x = 335,077,471,513.01/647,034.83
  6. Step 6: Final answer
    x = 517,866.21

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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.