Home / 1,605,207.60-2,407,811.40-1,431,025.20

Finding the Fourth Proportional to 1,605,207.60, 2,407,811.40 and 1,431,025.20

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Solution

The fourth proportional to 1,605,207.60, 2,407,811.40 and 1,431,025.20 is: 2,146,537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,207.60 : 2,407,811.40 = 1,431,025.20 : x
  2. Step 2: Convert to fraction form
    1,605,207.60/2,407,811.40 = 1,431,025.20/x
  3. Step 3: Cross multiply
    1,605,207.60x = 2,407,811.40 × 1,431,025.20
  4. Step 4: Simplify right side
    1,605,207.60x = 3,445,638,790,247.28
  5. Step 5: Solve for x
    x = 3,445,638,790,247.28/1,605,207.60
  6. Step 6: Final answer
    x = 2,146,537.80

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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.