Home / 808,219.75-1,212,335.70-358,819.60

Finding the Fourth Proportional to 808,219.75, 1,212,335.70 and 358,819.60

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Solution

The fourth proportional to 808,219.75, 1,212,335.70 and 358,819.60 is: 538,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,219.75 : 1,212,335.70 = 358,819.60 : x
  2. Step 2: Convert to fraction form
    808,219.75/1,212,335.70 = 358,819.60/x
  3. Step 3: Cross multiply
    808,219.75x = 1,212,335.70 × 358,819.60
  4. Step 4: Simplify right side
    808,219.75x = 435,009,810,939.72
  5. Step 5: Solve for x
    x = 435,009,810,939.72/808,219.75
  6. Step 6: Final answer
    x = 538,232.10

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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.