Home / 775,313.80-1,163,009.10-402,065.80

Finding the Fourth Proportional to 775,313.80, 1,163,009.10 and 402,065.80

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Solution

The fourth proportional to 775,313.80, 1,163,009.10 and 402,065.80 is: 603,118.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,313.80 : 1,163,009.10 = 402,065.80 : x
  2. Step 2: Convert to fraction form
    775,313.80/1,163,009.10 = 402,065.80/x
  3. Step 3: Cross multiply
    775,313.80x = 1,163,009.10 × 402,065.80
  4. Step 4: Simplify right side
    775,313.80x = 467,606,184,198.78
  5. Step 5: Solve for x
    x = 467,606,184,198.78/775,313.80
  6. Step 6: Final answer
    x = 603,118.61

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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.