Home / 1,380,591.66-1,905,804.30-928,145.10

Finding the Fourth Proportional to 1,380,591.66, 1,905,804.30 and 928,145.10

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Solution

The fourth proportional to 1,380,591.66, 1,905,804.30 and 928,145.10 is: 1,281,235.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,591.66 : 1,905,804.30 = 928,145.10 : x
  2. Step 2: Convert to fraction form
    1,380,591.66/1,905,804.30 = 928,145.10/x
  3. Step 3: Cross multiply
    1,380,591.66x = 1,905,804.30 × 928,145.10
  4. Step 4: Simplify right side
    1,380,591.66x = 1,768,862,922,603.93
  5. Step 5: Solve for x
    x = 1,768,862,922,603.93/1,380,591.66
  6. Step 6: Final answer
    x = 1,281,235.41

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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.