Home / 928,110.60-1,392,165.90-691,914.60

Finding the Fourth Proportional to 928,110.60, 1,392,165.90 and 691,914.60

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Solution

The fourth proportional to 928,110.60, 1,392,165.90 and 691,914.60 is: 1,037,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,110.60 : 1,392,165.90 = 691,914.60 : x
  2. Step 2: Convert to fraction form
    928,110.60/1,392,165.90 = 691,914.60/x
  3. Step 3: Cross multiply
    928,110.60x = 1,392,165.90 × 691,914.60
  4. Step 4: Simplify right side
    928,110.60x = 963,259,911,832.14
  5. Step 5: Solve for x
    x = 963,259,911,832.14/928,110.60
  6. Step 6: Final answer
    x = 1,037,871.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.