Home / 1,515,408.40-2,091,534.51-903,600.55

Finding the Fourth Proportional to 1,515,408.40, 2,091,534.51 and 903,600.55

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Solution

The fourth proportional to 1,515,408.40, 2,091,534.51 and 903,600.55 is: 1,247,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,408.40 : 2,091,534.51 = 903,600.55 : x
  2. Step 2: Convert to fraction form
    1,515,408.40/2,091,534.51 = 903,600.55/x
  3. Step 3: Cross multiply
    1,515,408.40x = 2,091,534.51 × 903,600.55
  4. Step 4: Simplify right side
    1,515,408.40x = 1,889,911,733,579.98
  5. Step 5: Solve for x
    x = 1,889,911,733,579.98/1,515,408.40
  6. Step 6: Final answer
    x = 1,247,130.30

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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.