Home / 1,405,350-2,108,083.32-408,078

Finding the Fourth Proportional to 1,405,350, 2,108,083.32 and 408,078

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Solution

The fourth proportional to 1,405,350, 2,108,083.32 and 408,078 is: 612,133.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,350 : 2,108,083.32 = 408,078 : x
  2. Step 2: Convert to fraction form
    1,405,350/2,108,083.32 = 408,078/x
  3. Step 3: Cross multiply
    1,405,350x = 2,108,083.32 × 408,078
  4. Step 4: Simplify right side
    1,405,350x = 860,262,425,058.96
  5. Step 5: Solve for x
    x = 860,262,425,058.96/1,405,350
  6. Step 6: Final answer
    x = 612,133.93

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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.