Home / 1,079,421.75-1,489,733.24-626,712.75

Finding the Fourth Proportional to 1,079,421.75, 1,489,733.24 and 626,712.75

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Solution

The fourth proportional to 1,079,421.75, 1,489,733.24 and 626,712.75 is: 864,939.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,421.75 : 1,489,733.24 = 626,712.75 : x
  2. Step 2: Convert to fraction form
    1,079,421.75/1,489,733.24 = 626,712.75/x
  3. Step 3: Cross multiply
    1,079,421.75x = 1,489,733.24 × 626,712.75
  4. Step 4: Simplify right side
    1,079,421.75x = 933,634,815,606.81
  5. Step 5: Solve for x
    x = 933,634,815,606.81/1,079,421.75
  6. Step 6: Final answer
    x = 864,939.78

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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.