Home / 1,375,743.32-1,898,525.77-772,131.32

Finding the Fourth Proportional to 1,375,743.32, 1,898,525.77 and 772,131.32

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Solution

The fourth proportional to 1,375,743.32, 1,898,525.77 and 772,131.32 is: 1,065,541.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,743.32 : 1,898,525.77 = 772,131.32 : x
  2. Step 2: Convert to fraction form
    1,375,743.32/1,898,525.77 = 772,131.32/x
  3. Step 3: Cross multiply
    1,375,743.32x = 1,898,525.77 × 772,131.32
  4. Step 4: Simplify right side
    1,375,743.32x = 1,465,911,199,351.49
  5. Step 5: Solve for x
    x = 1,465,911,199,351.49/1,375,743.32
  6. Step 6: Final answer
    x = 1,065,541.21

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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.