Home / 756,388.80-1,134,583.20-505,713.60

Finding the Fourth Proportional to 756,388.80, 1,134,583.20 and 505,713.60

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Solution

The fourth proportional to 756,388.80, 1,134,583.20 and 505,713.60 is: 758,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,388.80 : 1,134,583.20 = 505,713.60 : x
  2. Step 2: Convert to fraction form
    756,388.80/1,134,583.20 = 505,713.60/x
  3. Step 3: Cross multiply
    756,388.80x = 1,134,583.20 × 505,713.60
  4. Step 4: Simplify right side
    756,388.80x = 573,774,154,571.52
  5. Step 5: Solve for x
    x = 573,774,154,571.52/756,388.80
  6. Step 6: Final answer
    x = 758,570.40

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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.