Home / 794,369.60-1,190,776.80-320,422.40

Finding the Fourth Proportional to 794,369.60, 1,190,776.80 and 320,422.40

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Solution

The fourth proportional to 794,369.60, 1,190,776.80 and 320,422.40 is: 480,319.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    794,369.60 : 1,190,776.80 = 320,422.40 : x
  2. Step 2: Convert to fraction form
    794,369.60/1,190,776.80 = 320,422.40/x
  3. Step 3: Cross multiply
    794,369.60x = 1,190,776.80 × 320,422.40
  4. Step 4: Simplify right side
    794,369.60x = 381,551,560,120.32
  5. Step 5: Solve for x
    x = 381,551,560,120.32/794,369.60
  6. Step 6: Final answer
    x = 480,319.94

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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.