Home / 860,376.93-1,289,402.87-327,607.33

Finding the Fourth Proportional to 860,376.93, 1,289,402.87 and 327,607.33

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Solution

The fourth proportional to 860,376.93, 1,289,402.87 and 327,607.33 is: 490,968.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,376.93 : 1,289,402.87 = 327,607.33 : x
  2. Step 2: Convert to fraction form
    860,376.93/1,289,402.87 = 327,607.33/x
  3. Step 3: Cross multiply
    860,376.93x = 1,289,402.87 × 327,607.33
  4. Step 4: Simplify right side
    860,376.93x = 422,417,831,535.04
  5. Step 5: Solve for x
    x = 422,417,831,535.04/860,376.93
  6. Step 6: Final answer
    x = 490,968.34

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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.