Home / 919,840.76-1,379,656.02-245,974.60

Finding the Fourth Proportional to 919,840.76, 1,379,656.02 and 245,974.60

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Solution

The fourth proportional to 919,840.76, 1,379,656.02 and 245,974.60 is: 368,933.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,840.76 : 1,379,656.02 = 245,974.60 : x
  2. Step 2: Convert to fraction form
    919,840.76/1,379,656.02 = 245,974.60/x
  3. Step 3: Cross multiply
    919,840.76x = 1,379,656.02 × 245,974.60
  4. Step 4: Simplify right side
    919,840.76x = 339,360,337,657.09
  5. Step 5: Solve for x
    x = 339,360,337,657.09/919,840.76
  6. Step 6: Final answer
    x = 368,933.79

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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.