Home / 939,248.19-1,409,076.41-308,138.31

Finding the Fourth Proportional to 939,248.19, 1,409,076.41 and 308,138.31

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Solution

The fourth proportional to 939,248.19, 1,409,076.41 and 308,138.31 is: 462,274.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,248.19 : 1,409,076.41 = 308,138.31 : x
  2. Step 2: Convert to fraction form
    939,248.19/1,409,076.41 = 308,138.31/x
  3. Step 3: Cross multiply
    939,248.19x = 1,409,076.41 × 308,138.31
  4. Step 4: Simplify right side
    939,248.19x = 434,190,422,097.58
  5. Step 5: Solve for x
    x = 434,190,422,097.58/939,248.19
  6. Step 6: Final answer
    x = 462,274.43

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1.5x scale

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.