Home / 1,433,829.20-1,978,452.74-821,869.34

Finding the Fourth Proportional to 1,433,829.20, 1,978,452.74 and 821,869.34

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Solution

The fourth proportional to 1,433,829.20, 1,978,452.74 and 821,869.34 is: 1,134,046.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,829.20 : 1,978,452.74 = 821,869.34 : x
  2. Step 2: Convert to fraction form
    1,433,829.20/1,978,452.74 = 821,869.34/x
  3. Step 3: Cross multiply
    1,433,829.20x = 1,978,452.74 × 821,869.34
  4. Step 4: Simplify right side
    1,433,829.20x = 1,626,029,639,807.40
  5. Step 5: Solve for x
    x = 1,626,029,639,807.40/1,433,829.20
  6. Step 6: Final answer
    x = 1,134,046.96

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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.