Home / 702,427.20-1,051,221.60-422,145.60

Finding the Fourth Proportional to 702,427.20, 1,051,221.60 and 422,145.60

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Solution

The fourth proportional to 702,427.20, 1,051,221.60 and 422,145.60 is: 631,764.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,427.20 : 1,051,221.60 = 422,145.60 : x
  2. Step 2: Convert to fraction form
    702,427.20/1,051,221.60 = 422,145.60/x
  3. Step 3: Cross multiply
    702,427.20x = 1,051,221.60 × 422,145.60
  4. Step 4: Simplify right side
    702,427.20x = 443,768,573,064.96
  5. Step 5: Solve for x
    x = 443,768,573,064.96/702,427.20
  6. Step 6: Final answer
    x = 631,764.51

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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.