Home / 1,111,816.20-1,667,724.30-663,043.80

Finding the Fourth Proportional to 1,111,816.20, 1,667,724.30 and 663,043.80

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Solution

The fourth proportional to 1,111,816.20, 1,667,724.30 and 663,043.80 is: 994,565.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,816.20 : 1,667,724.30 = 663,043.80 : x
  2. Step 2: Convert to fraction form
    1,111,816.20/1,667,724.30 = 663,043.80/x
  3. Step 3: Cross multiply
    1,111,816.20x = 1,667,724.30 × 663,043.80
  4. Step 4: Simplify right side
    1,111,816.20x = 1,105,774,257,224.34
  5. Step 5: Solve for x
    x = 1,105,774,257,224.34/1,111,816.20
  6. Step 6: Final answer
    x = 994,565.70

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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.