Home / 469,453.32-647,828.10-278,352.36

Finding the Fourth Proportional to 469,453.32, 647,828.10 and 278,352.36

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Solution

The fourth proportional to 469,453.32, 647,828.10 and 278,352.36 is: 384,115.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,453.32 : 647,828.10 = 278,352.36 : x
  2. Step 2: Convert to fraction form
    469,453.32/647,828.10 = 278,352.36/x
  3. Step 3: Cross multiply
    469,453.32x = 647,828.10 × 278,352.36
  4. Step 4: Simplify right side
    469,453.32x = 180,324,480,509.32
  5. Step 5: Solve for x
    x = 180,324,480,509.32/469,453.32
  6. Step 6: Final answer
    x = 384,115.89

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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.