Home / 786,991.80-1,180,973.70-313,627.80

Finding the Fourth Proportional to 786,991.80, 1,180,973.70 and 313,627.80

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Solution

The fourth proportional to 786,991.80, 1,180,973.70 and 313,627.80 is: 470,635.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,991.80 : 1,180,973.70 = 313,627.80 : x
  2. Step 2: Convert to fraction form
    786,991.80/1,180,973.70 = 313,627.80/x
  3. Step 3: Cross multiply
    786,991.80x = 1,180,973.70 × 313,627.80
  4. Step 4: Simplify right side
    786,991.80x = 370,386,183,388.86
  5. Step 5: Solve for x
    x = 370,386,183,388.86/786,991.80
  6. Step 6: Final answer
    x = 470,635.38

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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.