Home / 638,449.37-881,032.80-348,054.02

Finding the Fourth Proportional to 638,449.37, 881,032.80 and 348,054.02

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Solution

The fourth proportional to 638,449.37, 881,032.80 and 348,054.02 is: 480,299.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,449.37 : 881,032.80 = 348,054.02 : x
  2. Step 2: Convert to fraction form
    638,449.37/881,032.80 = 348,054.02/x
  3. Step 3: Cross multiply
    638,449.37x = 881,032.80 × 348,054.02
  4. Step 4: Simplify right side
    638,449.37x = 306,647,007,791.86
  5. Step 5: Solve for x
    x = 306,647,007,791.86/638,449.37
  6. Step 6: Final answer
    x = 480,299.65

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1.5x scale

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.