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Finding the Fourth Proportional to 496,779.56, 685,538.34 and 270,420.20

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Solution

The fourth proportional to 496,779.56, 685,538.34 and 270,420.20 is: 373,170.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,779.56 : 685,538.34 = 270,420.20 : x
  2. Step 2: Convert to fraction form
    496,779.56/685,538.34 = 270,420.20/x
  3. Step 3: Cross multiply
    496,779.56x = 685,538.34 × 270,420.20
  4. Step 4: Simplify right side
    496,779.56x = 185,383,415,010.47
  5. Step 5: Solve for x
    x = 185,383,415,010.47/496,779.56
  6. Step 6: Final answer
    x = 373,170.38

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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.