Home / 1,445,391.40-1,994,656.18-800,821.76

Finding the Fourth Proportional to 1,445,391.40, 1,994,656.18 and 800,821.76

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Solution

The fourth proportional to 1,445,391.40, 1,994,656.18 and 800,821.76 is: 1,105,142.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445,391.40 : 1,994,656.18 = 800,821.76 : x
  2. Step 2: Convert to fraction form
    1,445,391.40/1,994,656.18 = 800,821.76/x
  3. Step 3: Cross multiply
    1,445,391.40x = 1,994,656.18 × 800,821.76
  4. Step 4: Simplify right side
    1,445,391.40x = 1,597,364,072,662.48
  5. Step 5: Solve for x
    x = 1,597,364,072,662.48/1,445,391.40
  6. Step 6: Final answer
    x = 1,105,142.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.