Home / 1,230,372.20-1,845,558.30-805,219.40

Finding the Fourth Proportional to 1,230,372.20, 1,845,558.30 and 805,219.40

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Solution

The fourth proportional to 1,230,372.20, 1,845,558.30 and 805,219.40 is: 1,207,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,372.20 : 1,845,558.30 = 805,219.40 : x
  2. Step 2: Convert to fraction form
    1,230,372.20/1,845,558.30 = 805,219.40/x
  3. Step 3: Cross multiply
    1,230,372.20x = 1,845,558.30 × 805,219.40
  4. Step 4: Simplify right side
    1,230,372.20x = 1,486,079,346,991.02
  5. Step 5: Solve for x
    x = 1,486,079,346,991.02/1,230,372.20
  6. Step 6: Final answer
    x = 1,207,829.10

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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.