Home / 780,043.60-1,170,065.40-306,571.60

Finding the Fourth Proportional to 780,043.60, 1,170,065.40 and 306,571.60

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Solution

The fourth proportional to 780,043.60, 1,170,065.40 and 306,571.60 is: 459,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,043.60 : 1,170,065.40 = 306,571.60 : x
  2. Step 2: Convert to fraction form
    780,043.60/1,170,065.40 = 306,571.60/x
  3. Step 3: Cross multiply
    780,043.60x = 1,170,065.40 × 306,571.60
  4. Step 4: Simplify right side
    780,043.60x = 358,708,821,782.64
  5. Step 5: Solve for x
    x = 358,708,821,782.64/780,043.60
  6. Step 6: Final answer
    x = 459,857.40

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Similar ratio
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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.