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Finding the Fourth Proportional to 360,620.56, 495,050.39 and 309,544.62

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Solution

The fourth proportional to 360,620.56, 495,050.39 and 309,544.62 is: 424,934.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,620.56 : 495,050.39 = 309,544.62 : x
  2. Step 2: Convert to fraction form
    360,620.56/495,050.39 = 309,544.62/x
  3. Step 3: Cross multiply
    360,620.56x = 495,050.39 × 309,544.62
  4. Step 4: Simplify right side
    360,620.56x = 153,240,183,770.82
  5. Step 5: Solve for x
    x = 153,240,183,770.82/360,620.56
  6. Step 6: Final answer
    x = 424,934.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.