Home / 1,432,230.90-1,976,498.22-820,383.32

Finding the Fourth Proportional to 1,432,230.90, 1,976,498.22 and 820,383.32

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Solution

The fourth proportional to 1,432,230.90, 1,976,498.22 and 820,383.32 is: 1,132,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,230.90 : 1,976,498.22 = 820,383.32 : x
  2. Step 2: Convert to fraction form
    1,432,230.90/1,976,498.22 = 820,383.32/x
  3. Step 3: Cross multiply
    1,432,230.90x = 1,976,498.22 × 820,383.32
  4. Step 4: Simplify right side
    1,432,230.90x = 1,621,486,171,697.69
  5. Step 5: Solve for x
    x = 1,621,486,171,697.69/1,432,230.90
  6. Step 6: Final answer
    x = 1,132,140.20

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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.