Home / 428,500,258.23-590,732,604.72-287,396,694.02

Finding the Fourth Proportional to 428,500,258.23, 590,732,604.72 and 287,396,694.02

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Solution

The fourth proportional to 428,500,258.23, 590,732,604.72 and 287,396,694.02 is: 396,206,523.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,500,258.23 : 590,732,604.72 = 287,396,694.02 : x
  2. Step 2: Convert to fraction form
    428,500,258.23/590,732,604.72 = 287,396,694.02/x
  3. Step 3: Cross multiply
    428,500,258.23x = 590,732,604.72 × 287,396,694.02
  4. Step 4: Simplify right side
    428,500,258.23x = 169,774,597,647,828,288
  5. Step 5: Solve for x
    x = 169,774,597,647,828,288/428,500,258.23
  6. Step 6: Final answer
    x = 396,206,523.53

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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.