Home / 1,284,853.20-1,927,279.80-1,235,864.40

Finding the Fourth Proportional to 1,284,853.20, 1,927,279.80 and 1,235,864.40

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Solution

The fourth proportional to 1,284,853.20, 1,927,279.80 and 1,235,864.40 is: 1,853,796.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,853.20 : 1,927,279.80 = 1,235,864.40 : x
  2. Step 2: Convert to fraction form
    1,284,853.20/1,927,279.80 = 1,235,864.40/x
  3. Step 3: Cross multiply
    1,284,853.20x = 1,927,279.80 × 1,235,864.40
  4. Step 4: Simplify right side
    1,284,853.20x = 2,381,856,493,659.12
  5. Step 5: Solve for x
    x = 2,381,856,493,659.12/1,284,853.20
  6. Step 6: Final answer
    x = 1,853,796.60

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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.