Home / 1,420,153.94-2,130,231.23-355,196.12

Finding the Fourth Proportional to 1,420,153.94, 2,130,231.23 and 355,196.12

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Solution

The fourth proportional to 1,420,153.94, 2,130,231.23 and 355,196.12 is: 532,794.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,153.94 : 2,130,231.23 = 355,196.12 : x
  2. Step 2: Convert to fraction form
    1,420,153.94/2,130,231.23 = 355,196.12/x
  3. Step 3: Cross multiply
    1,420,153.94x = 2,130,231.23 × 355,196.12
  4. Step 4: Simplify right side
    1,420,153.94x = 756,649,855,171.69
  5. Step 5: Solve for x
    x = 756,649,855,171.69/1,420,153.94
  6. Step 6: Final answer
    x = 532,794.25

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Double scale
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Similar ratio
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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.