Home / 807,419.75-1,211,366.47-238,815.84

Finding the Fourth Proportional to 807,419.75, 1,211,366.47 and 238,815.84

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Solution

The fourth proportional to 807,419.75, 1,211,366.47 and 238,815.84 is: 358,293.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,419.75 : 1,211,366.47 = 238,815.84 : x
  2. Step 2: Convert to fraction form
    807,419.75/1,211,366.47 = 238,815.84/x
  3. Step 3: Cross multiply
    807,419.75x = 1,211,366.47 × 238,815.84
  4. Step 4: Simplify right side
    807,419.75x = 289,293,504,802.58
  5. Step 5: Solve for x
    x = 289,293,504,802.58/807,419.75
  6. Step 6: Final answer
    x = 358,293.82

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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.