Home / 809,239.10-1,213,858.65-508,745.30

Finding the Fourth Proportional to 809,239.10, 1,213,858.65 and 508,745.30

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Solution

The fourth proportional to 809,239.10, 1,213,858.65 and 508,745.30 is: 763,117.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,239.10 : 1,213,858.65 = 508,745.30 : x
  2. Step 2: Convert to fraction form
    809,239.10/1,213,858.65 = 508,745.30/x
  3. Step 3: Cross multiply
    809,239.10x = 1,213,858.65 × 508,745.30
  4. Step 4: Simplify right side
    809,239.10x = 617,544,883,051.85
  5. Step 5: Solve for x
    x = 617,544,883,051.85/809,239.10
  6. Step 6: Final answer
    x = 763,117.95

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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.