Home / 860,637.68-1,290,998.55-328,059.44

Finding the Fourth Proportional to 860,637.68, 1,290,998.55 and 328,059.44

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Solution

The fourth proportional to 860,637.68, 1,290,998.55 and 328,059.44 is: 492,105.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,637.68 : 1,290,998.55 = 328,059.44 : x
  2. Step 2: Convert to fraction form
    860,637.68/1,290,998.55 = 328,059.44/x
  3. Step 3: Cross multiply
    860,637.68x = 1,290,998.55 × 328,059.44
  4. Step 4: Simplify right side
    860,637.68x = 423,524,261,353.81
  5. Step 5: Solve for x
    x = 423,524,261,353.81/860,637.68
  6. Step 6: Final answer
    x = 492,105.18

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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.