Home / 830,080.40-1,245,274.20-269,133.20

Finding the Fourth Proportional to 830,080.40, 1,245,274.20 and 269,133.20

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Solution

The fourth proportional to 830,080.40, 1,245,274.20 and 269,133.20 is: 403,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,080.40 : 1,245,274.20 = 269,133.20 : x
  2. Step 2: Convert to fraction form
    830,080.40/1,245,274.20 = 269,133.20/x
  3. Step 3: Cross multiply
    830,080.40x = 1,245,274.20 × 269,133.20
  4. Step 4: Simplify right side
    830,080.40x = 335,144,630,323.44
  5. Step 5: Solve for x
    x = 335,144,630,323.44/830,080.40
  6. Step 6: Final answer
    x = 403,749.60

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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.