Home / 1,692,135-2,335,146.30-928,190.40

Finding the Fourth Proportional to 1,692,135, 2,335,146.30 and 928,190.40

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Solution

The fourth proportional to 1,692,135, 2,335,146.30 and 928,190.40 is: 1,280,902.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692,135 : 2,335,146.30 = 928,190.40 : x
  2. Step 2: Convert to fraction form
    1,692,135/2,335,146.30 = 928,190.40/x
  3. Step 3: Cross multiply
    1,692,135x = 2,335,146.30 × 928,190.40
  4. Step 4: Simplify right side
    1,692,135x = 2,167,460,378,255.52
  5. Step 5: Solve for x
    x = 2,167,460,378,255.52/1,692,135
  6. Step 6: Final answer
    x = 1,280,902.75

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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.