Home / 638,617.37-881,260.30-362,939.18

Finding the Fourth Proportional to 638,617.37, 881,260.30 and 362,939.18

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Solution

The fourth proportional to 638,617.37, 881,260.30 and 362,939.18 is: 500,838.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,617.37 : 881,260.30 = 362,939.18 : x
  2. Step 2: Convert to fraction form
    638,617.37/881,260.30 = 362,939.18/x
  3. Step 3: Cross multiply
    638,617.37x = 881,260.30 × 362,939.18
  4. Step 4: Simplify right side
    638,617.37x = 319,843,890,648.55
  5. Step 5: Solve for x
    x = 319,843,890,648.55/638,617.37
  6. Step 6: Final answer
    x = 500,838.07

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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.