Home / 1,272,062.44-1,755,855.27-814,409.63

Finding the Fourth Proportional to 1,272,062.44, 1,755,855.27 and 814,409.63

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Solution

The fourth proportional to 1,272,062.44, 1,755,855.27 and 814,409.63 is: 1,124,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,062.44 : 1,755,855.27 = 814,409.63 : x
  2. Step 2: Convert to fraction form
    1,272,062.44/1,755,855.27 = 814,409.63/x
  3. Step 3: Cross multiply
    1,272,062.44x = 1,755,855.27 × 814,409.63
  4. Step 4: Simplify right side
    1,272,062.44x = 1,429,985,432,115.49
  5. Step 5: Solve for x
    x = 1,429,985,432,115.49/1,272,062.44
  6. Step 6: Final answer
    x = 1,124,147.20

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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.