Home / 1,185,721.30-1,778,576-287,163

Finding the Fourth Proportional to 1,185,721.30, 1,778,576 and 287,163

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Solution

The fourth proportional to 1,185,721.30, 1,778,576 and 287,163 is: 430,743.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,721.30 : 1,778,576 = 287,163 : x
  2. Step 2: Convert to fraction form
    1,185,721.30/1,778,576 = 287,163/x
  3. Step 3: Cross multiply
    1,185,721.30x = 1,778,576 × 287,163
  4. Step 4: Simplify right side
    1,185,721.30x = 510,741,219,888
  5. Step 5: Solve for x
    x = 510,741,219,888/1,185,721.30
  6. Step 6: Final answer
    x = 430,743.06

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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.