Home / 1,431,978.70-2,147,919.45-367,031.20

Finding the Fourth Proportional to 1,431,978.70, 2,147,919.45 and 367,031.20

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Solution

The fourth proportional to 1,431,978.70, 2,147,919.45 and 367,031.20 is: 550,534.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,978.70 : 2,147,919.45 = 367,031.20 : x
  2. Step 2: Convert to fraction form
    1,431,978.70/2,147,919.45 = 367,031.20/x
  3. Step 3: Cross multiply
    1,431,978.70x = 2,147,919.45 × 367,031.20
  4. Step 4: Simplify right side
    1,431,978.70x = 788,353,453,236.84
  5. Step 5: Solve for x
    x = 788,353,453,236.84/1,431,978.70
  6. Step 6: Final answer
    x = 550,534.34

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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.