Home / 864,810.72-1,297,285.20-303,971.04

Finding the Fourth Proportional to 864,810.72, 1,297,285.20 and 303,971.04

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Solution

The fourth proportional to 864,810.72, 1,297,285.20 and 303,971.04 is: 455,980.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,810.72 : 1,297,285.20 = 303,971.04 : x
  2. Step 2: Convert to fraction form
    864,810.72/1,297,285.20 = 303,971.04/x
  3. Step 3: Cross multiply
    864,810.72x = 1,297,285.20 × 303,971.04
  4. Step 4: Simplify right side
    864,810.72x = 394,337,131,420.61
  5. Step 5: Solve for x
    x = 394,337,131,420.61/864,810.72
  6. Step 6: Final answer
    x = 455,980.85

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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.