Home / 786,935.80-1,180,403.70-313,960.60

Finding the Fourth Proportional to 786,935.80, 1,180,403.70 and 313,960.60

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Solution

The fourth proportional to 786,935.80, 1,180,403.70 and 313,960.60 is: 470,940.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,935.80 : 1,180,403.70 = 313,960.60 : x
  2. Step 2: Convert to fraction form
    786,935.80/1,180,403.70 = 313,960.60/x
  3. Step 3: Cross multiply
    786,935.80x = 1,180,403.70 × 313,960.60
  4. Step 4: Simplify right side
    786,935.80x = 370,600,253,894.22
  5. Step 5: Solve for x
    x = 370,600,253,894.22/786,935.80
  6. Step 6: Final answer
    x = 470,940.90

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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.