Home / 1,125,879.60-1,690,048.20-628,215.60

Finding the Fourth Proportional to 1,125,879.60, 1,690,048.20 and 628,215.60

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Solution

The fourth proportional to 1,125,879.60, 1,690,048.20 and 628,215.60 is: 943,009.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,879.60 : 1,690,048.20 = 628,215.60 : x
  2. Step 2: Convert to fraction form
    1,125,879.60/1,690,048.20 = 628,215.60/x
  3. Step 3: Cross multiply
    1,125,879.60x = 1,690,048.20 × 628,215.60
  4. Step 4: Simplify right side
    1,125,879.60x = 1,061,714,643,991.92
  5. Step 5: Solve for x
    x = 1,061,714,643,991.92/1,125,879.60
  6. Step 6: Final answer
    x = 943,009.04

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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.