Home / 755,278.40-1,042,198.68-445,160.72

Finding the Fourth Proportional to 755,278.40, 1,042,198.68 and 445,160.72

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Solution

The fourth proportional to 755,278.40, 1,042,198.68 and 445,160.72 is: 614,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,278.40 : 1,042,198.68 = 445,160.72 : x
  2. Step 2: Convert to fraction form
    755,278.40/1,042,198.68 = 445,160.72/x
  3. Step 3: Cross multiply
    755,278.40x = 1,042,198.68 × 445,160.72
  4. Step 4: Simplify right side
    755,278.40x = 463,945,914,771.85
  5. Step 5: Solve for x
    x = 463,945,914,771.85/755,278.40
  6. Step 6: Final answer
    x = 614,271.39

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.