Home / 1,128,771.15-1,693,415.28-489,182.25

Finding the Fourth Proportional to 1,128,771.15, 1,693,415.28 and 489,182.25

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Solution

The fourth proportional to 1,128,771.15, 1,693,415.28 and 489,182.25 is: 733,885.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,771.15 : 1,693,415.28 = 489,182.25 : x
  2. Step 2: Convert to fraction form
    1,128,771.15/1,693,415.28 = 489,182.25/x
  3. Step 3: Cross multiply
    1,128,771.15x = 1,693,415.28 × 489,182.25
  4. Step 4: Simplify right side
    1,128,771.15x = 828,388,696,854.78
  5. Step 5: Solve for x
    x = 828,388,696,854.78/1,128,771.15
  6. Step 6: Final answer
    x = 733,885.43

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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.