Home / 786,984.80-1,180,963.20-313,620.80

Finding the Fourth Proportional to 786,984.80, 1,180,963.20 and 313,620.80

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Solution

The fourth proportional to 786,984.80, 1,180,963.20 and 313,620.80 is: 470,624.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,984.80 : 1,180,963.20 = 313,620.80 : x
  2. Step 2: Convert to fraction form
    786,984.80/1,180,963.20 = 313,620.80/x
  3. Step 3: Cross multiply
    786,984.80x = 1,180,963.20 × 313,620.80
  4. Step 4: Simplify right side
    786,984.80x = 370,374,623,554.56
  5. Step 5: Solve for x
    x = 370,374,623,554.56/786,984.80
  6. Step 6: Final answer
    x = 470,624.88

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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.