Home / 780,448.56-1,170,654.58-359,724.43

Finding the Fourth Proportional to 780,448.56, 1,170,654.58 and 359,724.43

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Solution

The fourth proportional to 780,448.56, 1,170,654.58 and 359,724.43 is: 539,578.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,448.56 : 1,170,654.58 = 359,724.43 : x
  2. Step 2: Convert to fraction form
    780,448.56/1,170,654.58 = 359,724.43/x
  3. Step 3: Cross multiply
    780,448.56x = 1,170,654.58 × 359,724.43
  4. Step 4: Simplify right side
    780,448.56x = 421,113,051,517.39
  5. Step 5: Solve for x
    x = 421,113,051,517.39/780,448.56
  6. Step 6: Final answer
    x = 539,578.23

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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.