Home / 422,036.20-583,287.78-338,055.40

Finding the Fourth Proportional to 422,036.20, 583,287.78 and 338,055.40

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Solution

The fourth proportional to 422,036.20, 583,287.78 and 338,055.40 is: 467,219.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,036.20 : 583,287.78 = 338,055.40 : x
  2. Step 2: Convert to fraction form
    422,036.20/583,287.78 = 338,055.40/x
  3. Step 3: Cross multiply
    422,036.20x = 583,287.78 × 338,055.40
  4. Step 4: Simplify right side
    422,036.20x = 197,183,583,783.01
  5. Step 5: Solve for x
    x = 197,183,583,783.01/422,036.20
  6. Step 6: Final answer
    x = 467,219.60

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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.