Home / 427,989.18-590,629.02-258,190.50

Finding the Fourth Proportional to 427,989.18, 590,629.02 and 258,190.50

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Solution

The fourth proportional to 427,989.18, 590,629.02 and 258,190.50 is: 356,305.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,989.18 : 590,629.02 = 258,190.50 : x
  2. Step 2: Convert to fraction form
    427,989.18/590,629.02 = 258,190.50/x
  3. Step 3: Cross multiply
    427,989.18x = 590,629.02 × 258,190.50
  4. Step 4: Simplify right side
    427,989.18x = 152,494,801,988.31
  5. Step 5: Solve for x
    x = 152,494,801,988.31/427,989.18
  6. Step 6: Final answer
    x = 356,305.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.