Home / 1,442,988-1,991,316.96-830,917.44

Finding the Fourth Proportional to 1,442,988, 1,991,316.96 and 830,917.44

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Solution

The fourth proportional to 1,442,988, 1,991,316.96 and 830,917.44 is: 1,146,662.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,988 : 1,991,316.96 = 830,917.44 : x
  2. Step 2: Convert to fraction form
    1,442,988/1,991,316.96 = 830,917.44/x
  3. Step 3: Cross multiply
    1,442,988x = 1,991,316.96 × 830,917.44
  4. Step 4: Simplify right side
    1,442,988x = 1,654,619,990,631.78
  5. Step 5: Solve for x
    x = 1,654,619,990,631.78/1,442,988
  6. Step 6: Final answer
    x = 1,146,662.34

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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.