Home / 330,245.20-494,055.60-286,359.40

Finding the Fourth Proportional to 330,245.20, 494,055.60 and 286,359.40

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Solution

The fourth proportional to 330,245.20, 494,055.60 and 286,359.40 is: 428,401.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,245.20 : 494,055.60 = 286,359.40 : x
  2. Step 2: Convert to fraction form
    330,245.20/494,055.60 = 286,359.40/x
  3. Step 3: Cross multiply
    330,245.20x = 494,055.60 × 286,359.40
  4. Step 4: Simplify right side
    330,245.20x = 141,477,465,182.64
  5. Step 5: Solve for x
    x = 141,477,465,182.64/330,245.20
  6. Step 6: Final answer
    x = 428,401.28

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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.