Home / 784,485.60-1,175,694.24-310,912.80

Finding the Fourth Proportional to 784,485.60, 1,175,694.24 and 310,912.80

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Solution

The fourth proportional to 784,485.60, 1,175,694.24 and 310,912.80 is: 465,959.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,485.60 : 1,175,694.24 = 310,912.80 : x
  2. Step 2: Convert to fraction form
    784,485.60/1,175,694.24 = 310,912.80/x
  3. Step 3: Cross multiply
    784,485.60x = 1,175,694.24 × 310,912.80
  4. Step 4: Simplify right side
    784,485.60x = 365,538,388,102.27
  5. Step 5: Solve for x
    x = 365,538,388,102.27/784,485.60
  6. Step 6: Final answer
    x = 465,959.33

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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.