Home / 756,255.72-1,133,964.97-300,385.13

Finding the Fourth Proportional to 756,255.72, 1,133,964.97 and 300,385.13

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Solution

The fourth proportional to 756,255.72, 1,133,964.97 and 300,385.13 is: 450,411.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,255.72 : 1,133,964.97 = 300,385.13 : x
  2. Step 2: Convert to fraction form
    756,255.72/1,133,964.97 = 300,385.13/x
  3. Step 3: Cross multiply
    756,255.72x = 1,133,964.97 × 300,385.13
  4. Step 4: Simplify right side
    756,255.72x = 340,626,218,075.94
  5. Step 5: Solve for x
    x = 340,626,218,075.94/756,255.72
  6. Step 6: Final answer
    x = 450,411.43

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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.