Home / 1,692,132.75-2,335,143.20-928,188.14

Finding the Fourth Proportional to 1,692,132.75, 2,335,143.20 and 928,188.14

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Solution

The fourth proportional to 1,692,132.75, 2,335,143.20 and 928,188.14 is: 1,280,899.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692,132.75 : 2,335,143.20 = 928,188.14 : x
  2. Step 2: Convert to fraction form
    1,692,132.75/2,335,143.20 = 928,188.14/x
  3. Step 3: Cross multiply
    1,692,132.75x = 2,335,143.20 × 928,188.14
  4. Step 4: Simplify right side
    1,692,132.75x = 2,167,452,207,124.99
  5. Step 5: Solve for x
    x = 2,167,452,207,124.99/1,692,132.75
  6. Step 6: Final answer
    x = 1,280,899.63

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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.