Home / 1,215,879.30-1,821,194.55-1,005,927.30

Finding the Fourth Proportional to 1,215,879.30, 1,821,194.55 and 1,005,927.30

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Solution

The fourth proportional to 1,215,879.30, 1,821,194.55 and 1,005,927.30 is: 1,506,719.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,879.30 : 1,821,194.55 = 1,005,927.30 : x
  2. Step 2: Convert to fraction form
    1,215,879.30/1,821,194.55 = 1,005,927.30/x
  3. Step 3: Cross multiply
    1,215,879.30x = 1,821,194.55 × 1,005,927.30
  4. Step 4: Simplify right side
    1,215,879.30x = 1,831,989,316,456.22
  5. Step 5: Solve for x
    x = 1,831,989,316,456.22/1,215,879.30
  6. Step 6: Final answer
    x = 1,506,719.72

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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.