Home / 1,620,036.10-2,427,138.15-1,285,279.30

Finding the Fourth Proportional to 1,620,036.10, 2,427,138.15 and 1,285,279.30

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Solution

The fourth proportional to 1,620,036.10, 2,427,138.15 and 1,285,279.30 is: 1,925,605.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,036.10 : 2,427,138.15 = 1,285,279.30 : x
  2. Step 2: Convert to fraction form
    1,620,036.10/2,427,138.15 = 1,285,279.30/x
  3. Step 3: Cross multiply
    1,620,036.10x = 2,427,138.15 × 1,285,279.30
  4. Step 4: Simplify right side
    1,620,036.10x = 3,119,550,422,435.30
  5. Step 5: Solve for x
    x = 3,119,550,422,435.30/1,620,036.10
  6. Step 6: Final answer
    x = 1,925,605.50

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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.