Home / 785,427.78-1,178,118.14-216,843.58

Finding the Fourth Proportional to 785,427.78, 1,178,118.14 and 216,843.58

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Solution

The fourth proportional to 785,427.78, 1,178,118.14 and 216,843.58 is: 325,258.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,427.78 : 1,178,118.14 = 216,843.58 : x
  2. Step 2: Convert to fraction form
    785,427.78/1,178,118.14 = 216,843.58/x
  3. Step 3: Cross multiply
    785,427.78x = 1,178,118.14 × 216,843.58
  4. Step 4: Simplify right side
    785,427.78x = 255,467,351,924.19
  5. Step 5: Solve for x
    x = 255,467,351,924.19/785,427.78
  6. Step 6: Final answer
    x = 325,258.87

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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.