Home / 1,040,370.90-1,560,556.35-330,470.70

Finding the Fourth Proportional to 1,040,370.90, 1,560,556.35 and 330,470.70

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Solution

The fourth proportional to 1,040,370.90, 1,560,556.35 and 330,470.70 is: 495,706.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,370.90 : 1,560,556.35 = 330,470.70 : x
  2. Step 2: Convert to fraction form
    1,040,370.90/1,560,556.35 = 330,470.70/x
  3. Step 3: Cross multiply
    1,040,370.90x = 1,560,556.35 × 330,470.70
  4. Step 4: Simplify right side
    1,040,370.90x = 515,718,149,373.95
  5. Step 5: Solve for x
    x = 515,718,149,373.95/1,040,370.90
  6. Step 6: Final answer
    x = 495,706.05

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Double scale
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Similar ratio
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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.