Home / 780,051.90-1,170,077.85-360,147.90

Finding the Fourth Proportional to 780,051.90, 1,170,077.85 and 360,147.90

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Solution

The fourth proportional to 780,051.90, 1,170,077.85 and 360,147.90 is: 540,221.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,051.90 : 1,170,077.85 = 360,147.90 : x
  2. Step 2: Convert to fraction form
    780,051.90/1,170,077.85 = 360,147.90/x
  3. Step 3: Cross multiply
    780,051.90x = 1,170,077.85 × 360,147.90
  4. Step 4: Simplify right side
    780,051.90x = 421,401,080,514.02
  5. Step 5: Solve for x
    x = 421,401,080,514.02/780,051.90
  6. Step 6: Final answer
    x = 540,221.85

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Similar ratio
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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.