Home / 1,620,027.60-2,427,125.40-1,285,270.80

Finding the Fourth Proportional to 1,620,027.60, 2,427,125.40 and 1,285,270.80

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Solution

The fourth proportional to 1,620,027.60, 2,427,125.40 and 1,285,270.80 is: 1,925,592.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,027.60 : 2,427,125.40 = 1,285,270.80 : x
  2. Step 2: Convert to fraction form
    1,620,027.60/2,427,125.40 = 1,285,270.80/x
  3. Step 3: Cross multiply
    1,620,027.60x = 2,427,125.40 × 1,285,270.80
  4. Step 4: Simplify right side
    1,620,027.60x = 3,119,513,404,558.32
  5. Step 5: Solve for x
    x = 3,119,513,404,558.32/1,620,027.60
  6. Step 6: Final answer
    x = 1,925,592.75

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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.