Home / 821,538.40-1,232,345.65-252,944.96

Finding the Fourth Proportional to 821,538.40, 1,232,345.65 and 252,944.96

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Solution

The fourth proportional to 821,538.40, 1,232,345.65 and 252,944.96 is: 379,429.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,538.40 : 1,232,345.65 = 252,944.96 : x
  2. Step 2: Convert to fraction form
    821,538.40/1,232,345.65 = 252,944.96/x
  3. Step 3: Cross multiply
    821,538.40x = 1,232,345.65 × 252,944.96
  4. Step 4: Simplify right side
    821,538.40x = 311,715,628,201.48
  5. Step 5: Solve for x
    x = 311,715,628,201.48/821,538.40
  6. Step 6: Final answer
    x = 379,429.17

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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.