Home / 1,019,516.21-1,529,175.39-309,550.40

Finding the Fourth Proportional to 1,019,516.21, 1,529,175.39 and 309,550.40

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Solution

The fourth proportional to 1,019,516.21, 1,529,175.39 and 309,550.40 is: 464,295.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,516.21 : 1,529,175.39 = 309,550.40 : x
  2. Step 2: Convert to fraction form
    1,019,516.21/1,529,175.39 = 309,550.40/x
  3. Step 3: Cross multiply
    1,019,516.21x = 1,529,175.39 × 309,550.40
  4. Step 4: Simplify right side
    1,019,516.21x = 473,356,853,644.66
  5. Step 5: Solve for x
    x = 473,356,853,644.66/1,019,516.21
  6. Step 6: Final answer
    x = 464,295.56

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Double scale
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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.