Home / 808,212.75-1,212,325.20-358,812.60

Finding the Fourth Proportional to 808,212.75, 1,212,325.20 and 358,812.60

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Solution

The fourth proportional to 808,212.75, 1,212,325.20 and 358,812.60 is: 538,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,212.75 : 1,212,325.20 = 358,812.60 : x
  2. Step 2: Convert to fraction form
    808,212.75/1,212,325.20 = 358,812.60/x
  3. Step 3: Cross multiply
    808,212.75x = 1,212,325.20 × 358,812.60
  4. Step 4: Simplify right side
    808,212.75x = 434,997,557,057.52
  5. Step 5: Solve for x
    x = 434,997,557,057.52/808,212.75
  6. Step 6: Final answer
    x = 538,221.60

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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.