Home / 788,873.40-1,184,087.70-389,964.60

Finding the Fourth Proportional to 788,873.40, 1,184,087.70 and 389,964.60

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Solution

The fourth proportional to 788,873.40, 1,184,087.70 and 389,964.60 is: 585,331.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,873.40 : 1,184,087.70 = 389,964.60 : x
  2. Step 2: Convert to fraction form
    788,873.40/1,184,087.70 = 389,964.60/x
  3. Step 3: Cross multiply
    788,873.40x = 1,184,087.70 × 389,964.60
  4. Step 4: Simplify right side
    788,873.40x = 461,752,286,295.42
  5. Step 5: Solve for x
    x = 461,752,286,295.42/788,873.40
  6. Step 6: Final answer
    x = 585,331.29

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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.