Home / 805,377.44-1,208,999.40-432,129.44

Finding the Fourth Proportional to 805,377.44, 1,208,999.40 and 432,129.44

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Solution

The fourth proportional to 805,377.44, 1,208,999.40 and 432,129.44 is: 648,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,377.44 : 1,208,999.40 = 432,129.44 : x
  2. Step 2: Convert to fraction form
    805,377.44/1,208,999.40 = 432,129.44/x
  3. Step 3: Cross multiply
    805,377.44x = 1,208,999.40 × 432,129.44
  4. Step 4: Simplify right side
    805,377.44x = 522,444,233,682.34
  5. Step 5: Solve for x
    x = 522,444,233,682.34/805,377.44
  6. Step 6: Final answer
    x = 648,694.89

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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.