Home / 839,222.64-1,258,832.82-389,697.70

Finding the Fourth Proportional to 839,222.64, 1,258,832.82 and 389,697.70

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Solution

The fourth proportional to 839,222.64, 1,258,832.82 and 389,697.70 is: 584,546.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,222.64 : 1,258,832.82 = 389,697.70 : x
  2. Step 2: Convert to fraction form
    839,222.64/1,258,832.82 = 389,697.70/x
  3. Step 3: Cross multiply
    839,222.64x = 1,258,832.82 × 389,697.70
  4. Step 4: Simplify right side
    839,222.64x = 490,564,252,690.03
  5. Step 5: Solve for x
    x = 490,564,252,690.03/839,222.64
  6. Step 6: Final answer
    x = 584,546.02

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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.