Home / 313,826.21-470,562.12-287,046.56

Finding the Fourth Proportional to 313,826.21, 470,562.12 and 287,046.56

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Solution

The fourth proportional to 313,826.21, 470,562.12 and 287,046.56 is: 430,407.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,826.21 : 470,562.12 = 287,046.56 : x
  2. Step 2: Convert to fraction form
    313,826.21/470,562.12 = 287,046.56/x
  3. Step 3: Cross multiply
    313,826.21x = 470,562.12 × 287,046.56
  4. Step 4: Simplify right side
    313,826.21x = 135,073,238,988.71
  5. Step 5: Solve for x
    x = 135,073,238,988.71/313,826.21
  6. Step 6: Final answer
    x = 430,407.78

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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.