Home / 784,623.20-1,175,359.36-664,164.32

Finding the Fourth Proportional to 784,623.20, 1,175,359.36 and 664,164.32

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Solution

The fourth proportional to 784,623.20, 1,175,359.36 and 664,164.32 is: 994,912.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,623.20 : 1,175,359.36 = 664,164.32 : x
  2. Step 2: Convert to fraction form
    784,623.20/1,175,359.36 = 664,164.32/x
  3. Step 3: Cross multiply
    784,623.20x = 1,175,359.36 × 664,164.32
  4. Step 4: Simplify right side
    784,623.20x = 780,631,750,090.04
  5. Step 5: Solve for x
    x = 780,631,750,090.04/784,623.20
  6. Step 6: Final answer
    x = 994,912.91

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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.