Home / 1,443,200.77-1,991,481.82-862,308.21

Finding the Fourth Proportional to 1,443,200.77, 1,991,481.82 and 862,308.21

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Solution

The fourth proportional to 1,443,200.77, 1,991,481.82 and 862,308.21 is: 1,189,904.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,200.77 : 1,991,481.82 = 862,308.21 : x
  2. Step 2: Convert to fraction form
    1,443,200.77/1,991,481.82 = 862,308.21/x
  3. Step 3: Cross multiply
    1,443,200.77x = 1,991,481.82 × 862,308.21
  4. Step 4: Simplify right side
    1,443,200.77x = 1,717,271,114,386.14
  5. Step 5: Solve for x
    x = 1,717,271,114,386.14/1,443,200.77
  6. Step 6: Final answer
    x = 1,189,904.52

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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.