Home / 919,840.51-1,379,655.64-245,974.35

Finding the Fourth Proportional to 919,840.51, 1,379,655.64 and 245,974.35

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Solution

The fourth proportional to 919,840.51, 1,379,655.64 and 245,974.35 is: 368,933.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,840.51 : 1,379,655.64 = 245,974.35 : x
  2. Step 2: Convert to fraction form
    919,840.51/1,379,655.64 = 245,974.35/x
  3. Step 3: Cross multiply
    919,840.51x = 1,379,655.64 × 245,974.35
  4. Step 4: Simplify right side
    919,840.51x = 339,359,898,657.90
  5. Step 5: Solve for x
    x = 339,359,898,657.90/919,840.51
  6. Step 6: Final answer
    x = 368,933.41

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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.