Home / 1,279,649.93-1,765,960.47-756,808.72

Finding the Fourth Proportional to 1,279,649.93, 1,765,960.47 and 756,808.72

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Solution

The fourth proportional to 1,279,649.93, 1,765,960.47 and 756,808.72 is: 1,044,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,649.93 : 1,765,960.47 = 756,808.72 : x
  2. Step 2: Convert to fraction form
    1,279,649.93/1,765,960.47 = 756,808.72/x
  3. Step 3: Cross multiply
    1,279,649.93x = 1,765,960.47 × 756,808.72
  4. Step 4: Simplify right side
    1,279,649.93x = 1,336,494,278,456.40
  5. Step 5: Solve for x
    x = 1,336,494,278,456.40/1,279,649.93
  6. Step 6: Final answer
    x = 1,044,421.80

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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.