Home / 2,688,949.80-4,032,258.30-891,138.60

Finding the Fourth Proportional to 2,688,949.80, 4,032,258.30 and 891,138.60

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Solution

The fourth proportional to 2,688,949.80, 4,032,258.30 and 891,138.60 is: 1,336,321.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,949.80 : 4,032,258.30 = 891,138.60 : x
  2. Step 2: Convert to fraction form
    2,688,949.80/4,032,258.30 = 891,138.60/x
  3. Step 3: Cross multiply
    2,688,949.80x = 4,032,258.30 × 891,138.60
  4. Step 4: Simplify right side
    2,688,949.80x = 3,593,301,016,300.38
  5. Step 5: Solve for x
    x = 3,593,301,016,300.38/2,688,949.80
  6. Step 6: Final answer
    x = 1,336,321.35

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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.