Home / 784,662.40-1,177,147.20-335,382.40

Finding the Fourth Proportional to 784,662.40, 1,177,147.20 and 335,382.40

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Solution

The fourth proportional to 784,662.40, 1,177,147.20 and 335,382.40 is: 503,139.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,662.40 : 1,177,147.20 = 335,382.40 : x
  2. Step 2: Convert to fraction form
    784,662.40/1,177,147.20 = 335,382.40/x
  3. Step 3: Cross multiply
    784,662.40x = 1,177,147.20 × 335,382.40
  4. Step 4: Simplify right side
    784,662.40x = 394,794,453,089.28
  5. Step 5: Solve for x
    x = 394,794,453,089.28/784,662.40
  6. Step 6: Final answer
    x = 503,139.25

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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.