Home / 494,131.20-740,439.36-257,550.72

Finding the Fourth Proportional to 494,131.20, 740,439.36 and 257,550.72

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Solution

The fourth proportional to 494,131.20, 740,439.36 and 257,550.72 is: 385,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,131.20 : 740,439.36 = 257,550.72 : x
  2. Step 2: Convert to fraction form
    494,131.20/740,439.36 = 257,550.72/x
  3. Step 3: Cross multiply
    494,131.20x = 740,439.36 × 257,550.72
  4. Step 4: Simplify right side
    494,131.20x = 190,700,690,284.34
  5. Step 5: Solve for x
    x = 190,700,690,284.34/494,131.20
  6. Step 6: Final answer
    x = 385,931.29

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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.