Home / 815,608.64-1,222,739.40-359,875.44

Finding the Fourth Proportional to 815,608.64, 1,222,739.40 and 359,875.44

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Solution

The fourth proportional to 815,608.64, 1,222,739.40 and 359,875.44 is: 539,515.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,608.64 : 1,222,739.40 = 359,875.44 : x
  2. Step 2: Convert to fraction form
    815,608.64/1,222,739.40 = 359,875.44/x
  3. Step 3: Cross multiply
    815,608.64x = 1,222,739.40 × 359,875.44
  4. Step 4: Simplify right side
    815,608.64x = 440,033,879,580.34
  5. Step 5: Solve for x
    x = 440,033,879,580.34/815,608.64
  6. Step 6: Final answer
    x = 539,515.96

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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.