Home / 808,106.50-1,212,165.83-358,706.56

Finding the Fourth Proportional to 808,106.50, 1,212,165.83 and 358,706.56

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Solution

The fourth proportional to 808,106.50, 1,212,165.83 and 358,706.56 is: 538,062.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,106.50 : 1,212,165.83 = 358,706.56 : x
  2. Step 2: Convert to fraction form
    808,106.50/1,212,165.83 = 358,706.56/x
  3. Step 3: Cross multiply
    808,106.50x = 1,212,165.83 × 358,706.56
  4. Step 4: Simplify right side
    808,106.50x = 434,811,835,028.85
  5. Step 5: Solve for x
    x = 434,811,835,028.85/808,106.50
  6. Step 6: Final answer
    x = 538,062.54

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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.