Home / 1,409,821.10-1,940,636.13-1,216,841.06

Finding the Fourth Proportional to 1,409,821.10, 1,940,636.13 and 1,216,841.06

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Solution

The fourth proportional to 1,409,821.10, 1,940,636.13 and 1,216,841.06 is: 1,674,996.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,821.10 : 1,940,636.13 = 1,216,841.06 : x
  2. Step 2: Convert to fraction form
    1,409,821.10/1,940,636.13 = 1,216,841.06/x
  3. Step 3: Cross multiply
    1,409,821.10x = 1,940,636.13 × 1,216,841.06
  4. Step 4: Simplify right side
    1,409,821.10x = 2,361,445,725,503.50
  5. Step 5: Solve for x
    x = 2,361,445,725,503.50/1,409,821.10
  6. Step 6: Final answer
    x = 1,674,996.73

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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.