Home / 815,439.64-1,222,674.88-310,037.60

Finding the Fourth Proportional to 815,439.64, 1,222,674.88 and 310,037.60

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Solution

The fourth proportional to 815,439.64, 1,222,674.88 and 310,037.60 is: 464,872.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,439.64 : 1,222,674.88 = 310,037.60 : x
  2. Step 2: Convert to fraction form
    815,439.64/1,222,674.88 = 310,037.60/x
  3. Step 3: Cross multiply
    815,439.64x = 1,222,674.88 × 310,037.60
  4. Step 4: Simplify right side
    815,439.64x = 379,075,185,375.49
  5. Step 5: Solve for x
    x = 379,075,185,375.49/815,439.64
  6. Step 6: Final answer
    x = 464,872.16

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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.