Home / 490,739.73-736,109.70-153,780.30

Finding the Fourth Proportional to 490,739.73, 736,109.70 and 153,780.30

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Solution

The fourth proportional to 490,739.73, 736,109.70 and 153,780.30 is: 230,670.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,739.73 : 736,109.70 = 153,780.30 : x
  2. Step 2: Convert to fraction form
    490,739.73/736,109.70 = 153,780.30/x
  3. Step 3: Cross multiply
    490,739.73x = 736,109.70 × 153,780.30
  4. Step 4: Simplify right side
    490,739.73x = 113,199,170,498.91
  5. Step 5: Solve for x
    x = 113,199,170,498.91/490,739.73
  6. Step 6: Final answer
    x = 230,670.48

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1.5x scale

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.