Home / 1,631,966.40-2,447,949.60-1,128,081.60

Finding the Fourth Proportional to 1,631,966.40, 2,447,949.60 and 1,128,081.60

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Solution

The fourth proportional to 1,631,966.40, 2,447,949.60 and 1,128,081.60 is: 1,692,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631,966.40 : 2,447,949.60 = 1,128,081.60 : x
  2. Step 2: Convert to fraction form
    1,631,966.40/2,447,949.60 = 1,128,081.60/x
  3. Step 3: Cross multiply
    1,631,966.40x = 2,447,949.60 × 1,128,081.60
  4. Step 4: Simplify right side
    1,631,966.40x = 2,761,486,901,487.36
  5. Step 5: Solve for x
    x = 2,761,486,901,487.36/1,631,966.40
  6. Step 6: Final answer
    x = 1,692,122.40

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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.