Home / 839,400.96-1,258,634.80-340,181.76

Finding the Fourth Proportional to 839,400.96, 1,258,634.80 and 340,181.76

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Solution

The fourth proportional to 839,400.96, 1,258,634.80 and 340,181.76 is: 510,083.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,400.96 : 1,258,634.80 = 340,181.76 : x
  2. Step 2: Convert to fraction form
    839,400.96/1,258,634.80 = 340,181.76/x
  3. Step 3: Cross multiply
    839,400.96x = 1,258,634.80 × 340,181.76
  4. Step 4: Simplify right side
    839,400.96x = 428,164,601,461.25
  5. Step 5: Solve for x
    x = 428,164,601,461.25/839,400.96
  6. Step 6: Final answer
    x = 510,083.53

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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.