Home / 639,222.40-882,169.68-367,378.30

Finding the Fourth Proportional to 639,222.40, 882,169.68 and 367,378.30

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Solution

The fourth proportional to 639,222.40, 882,169.68 and 367,378.30 is: 507,006.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,222.40 : 882,169.68 = 367,378.30 : x
  2. Step 2: Convert to fraction form
    639,222.40/882,169.68 = 367,378.30/x
  3. Step 3: Cross multiply
    639,222.40x = 882,169.68 × 367,378.30
  4. Step 4: Simplify right side
    639,222.40x = 324,089,997,349.94
  5. Step 5: Solve for x
    x = 324,089,997,349.94/639,222.40
  6. Step 6: Final answer
    x = 507,006.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.