Home / 780,042.20-1,170,063.30-360,138.20

Finding the Fourth Proportional to 780,042.20, 1,170,063.30 and 360,138.20

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Solution

The fourth proportional to 780,042.20, 1,170,063.30 and 360,138.20 is: 540,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,042.20 : 1,170,063.30 = 360,138.20 : x
  2. Step 2: Convert to fraction form
    780,042.20/1,170,063.30 = 360,138.20/x
  3. Step 3: Cross multiply
    780,042.20x = 1,170,063.30 × 360,138.20
  4. Step 4: Simplify right side
    780,042.20x = 421,384,490,748.06
  5. Step 5: Solve for x
    x = 421,384,490,748.06/780,042.20
  6. Step 6: Final answer
    x = 540,207.30

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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.