Home / 1,375,738.63-1,898,519.30-772,126.63

Finding the Fourth Proportional to 1,375,738.63, 1,898,519.30 and 772,126.63

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Solution

The fourth proportional to 1,375,738.63, 1,898,519.30 and 772,126.63 is: 1,065,534.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,738.63 : 1,898,519.30 = 772,126.63 : x
  2. Step 2: Convert to fraction form
    1,375,738.63/1,898,519.30 = 772,126.63/x
  3. Step 3: Cross multiply
    1,375,738.63x = 1,898,519.30 × 772,126.63
  4. Step 4: Simplify right side
    1,375,738.63x = 1,465,897,309,098.96
  5. Step 5: Solve for x
    x = 1,465,897,309,098.96/1,375,738.63
  6. Step 6: Final answer
    x = 1,065,534.74

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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.