Home / 1,112,378.24-1,668,480.32-313,627.52

Finding the Fourth Proportional to 1,112,378.24, 1,668,480.32 and 313,627.52

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Solution

The fourth proportional to 1,112,378.24, 1,668,480.32 and 313,627.52 is: 470,416.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,378.24 : 1,668,480.32 = 313,627.52 : x
  2. Step 2: Convert to fraction form
    1,112,378.24/1,668,480.32 = 313,627.52/x
  3. Step 3: Cross multiply
    1,112,378.24x = 1,668,480.32 × 313,627.52
  4. Step 4: Simplify right side
    1,112,378.24x = 523,281,344,930.41
  5. Step 5: Solve for x
    x = 523,281,344,930.41/1,112,378.24
  6. Step 6: Final answer
    x = 470,416.74

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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.