Home / 1,418,428.97-1,957,432.43-909,131.34

Finding the Fourth Proportional to 1,418,428.97, 1,957,432.43 and 909,131.34

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Solution

The fourth proportional to 1,418,428.97, 1,957,432.43 and 909,131.34 is: 1,254,601.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,428.97 : 1,957,432.43 = 909,131.34 : x
  2. Step 2: Convert to fraction form
    1,418,428.97/1,957,432.43 = 909,131.34/x
  3. Step 3: Cross multiply
    1,418,428.97x = 1,957,432.43 × 909,131.34
  4. Step 4: Simplify right side
    1,418,428.97x = 1,779,563,177,658.56
  5. Step 5: Solve for x
    x = 1,779,563,177,658.56/1,418,428.97
  6. Step 6: Final answer
    x = 1,254,601.55

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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.