Home / 1,431,919.84-2,147,879-421,050.20

Finding the Fourth Proportional to 1,431,919.84, 2,147,879 and 421,050.20

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Solution

The fourth proportional to 1,431,919.84, 2,147,879 and 421,050.20 is: 631,575.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,919.84 : 2,147,879 = 421,050.20 : x
  2. Step 2: Convert to fraction form
    1,431,919.84/2,147,879 = 421,050.20/x
  3. Step 3: Cross multiply
    1,431,919.84x = 2,147,879 × 421,050.20
  4. Step 4: Simplify right side
    1,431,919.84x = 904,364,882,525.80
  5. Step 5: Solve for x
    x = 904,364,882,525.80/1,431,919.84
  6. Step 6: Final answer
    x = 631,575.08

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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.