Home / 1,259,856.60-1,889,784.90-1,238,861.40

Finding the Fourth Proportional to 1,259,856.60, 1,889,784.90 and 1,238,861.40

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Solution

The fourth proportional to 1,259,856.60, 1,889,784.90 and 1,238,861.40 is: 1,858,292.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,856.60 : 1,889,784.90 = 1,238,861.40 : x
  2. Step 2: Convert to fraction form
    1,259,856.60/1,889,784.90 = 1,238,861.40/x
  3. Step 3: Cross multiply
    1,259,856.60x = 1,889,784.90 × 1,238,861.40
  4. Step 4: Simplify right side
    1,259,856.60x = 2,341,181,566,912.86
  5. Step 5: Solve for x
    x = 2,341,181,566,912.86/1,259,856.60
  6. Step 6: Final answer
    x = 1,858,292.10

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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.