Home / 852,102.24-1,278,814.32-320,107.20

Finding the Fourth Proportional to 852,102.24, 1,278,814.32 and 320,107.20

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Solution

The fourth proportional to 852,102.24, 1,278,814.32 and 320,107.20 is: 480,409.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,102.24 : 1,278,814.32 = 320,107.20 : x
  2. Step 2: Convert to fraction form
    852,102.24/1,278,814.32 = 320,107.20/x
  3. Step 3: Cross multiply
    852,102.24x = 1,278,814.32 × 320,107.20
  4. Step 4: Simplify right side
    852,102.24x = 409,357,671,295.10
  5. Step 5: Solve for x
    x = 409,357,671,295.10/852,102.24
  6. Step 6: Final answer
    x = 480,409.10

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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.