Home / 1,422,155.90-2,128,049.85-1,048,907.90

Finding the Fourth Proportional to 1,422,155.90, 2,128,049.85 and 1,048,907.90

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Solution

The fourth proportional to 1,422,155.90, 2,128,049.85 and 1,048,907.90 is: 1,569,538.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,155.90 : 2,128,049.85 = 1,048,907.90 : x
  2. Step 2: Convert to fraction form
    1,422,155.90/2,128,049.85 = 1,048,907.90/x
  3. Step 3: Cross multiply
    1,422,155.90x = 2,128,049.85 × 1,048,907.90
  4. Step 4: Simplify right side
    1,422,155.90x = 2,232,128,299,258.82
  5. Step 5: Solve for x
    x = 2,232,128,299,258.82/1,422,155.90
  6. Step 6: Final answer
    x = 1,569,538.40

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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.