Home / 1,115,238.63-1,672,854.87-316,520.94

Finding the Fourth Proportional to 1,115,238.63, 1,672,854.87 and 316,520.94

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Solution

The fourth proportional to 1,115,238.63, 1,672,854.87 and 316,520.94 is: 474,780.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,238.63 : 1,672,854.87 = 316,520.94 : x
  2. Step 2: Convert to fraction form
    1,115,238.63/1,672,854.87 = 316,520.94/x
  3. Step 3: Cross multiply
    1,115,238.63x = 1,672,854.87 × 316,520.94
  4. Step 4: Simplify right side
    1,115,238.63x = 529,493,595,935.98
  5. Step 5: Solve for x
    x = 529,493,595,935.98/1,115,238.63
  6. Step 6: Final answer
    x = 474,780.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.