Home / 1,215,863.60-1,824,832.20-542,980.40

Finding the Fourth Proportional to 1,215,863.60, 1,824,832.20 and 542,980.40

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Solution

The fourth proportional to 1,215,863.60, 1,824,832.20 and 542,980.40 is: 814,933.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,863.60 : 1,824,832.20 = 542,980.40 : x
  2. Step 2: Convert to fraction form
    1,215,863.60/1,824,832.20 = 542,980.40/x
  3. Step 3: Cross multiply
    1,215,863.60x = 1,824,832.20 × 542,980.40
  4. Step 4: Simplify right side
    1,215,863.60x = 990,848,117,888.88
  5. Step 5: Solve for x
    x = 990,848,117,888.88/1,215,863.60
  6. Step 6: Final answer
    x = 814,933.61

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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.