Home / 405,930.48-608,429.16-272,649.84

Finding the Fourth Proportional to 405,930.48, 608,429.16 and 272,649.84

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Solution

The fourth proportional to 405,930.48, 608,429.16 and 272,649.84 is: 408,661.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,930.48 : 608,429.16 = 272,649.84 : x
  2. Step 2: Convert to fraction form
    405,930.48/608,429.16 = 272,649.84/x
  3. Step 3: Cross multiply
    405,930.48x = 608,429.16 × 272,649.84
  4. Step 4: Simplify right side
    405,930.48x = 165,888,113,125.33
  5. Step 5: Solve for x
    x = 165,888,113,125.33/405,930.48
  6. Step 6: Final answer
    x = 408,661.39

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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.