Home / 1,221,986.77-1,832,980.02-380,604.13

Finding the Fourth Proportional to 1,221,986.77, 1,832,980.02 and 380,604.13

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Solution

The fourth proportional to 1,221,986.77, 1,832,980.02 and 380,604.13 is: 570,906.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,986.77 : 1,832,980.02 = 380,604.13 : x
  2. Step 2: Convert to fraction form
    1,221,986.77/1,832,980.02 = 380,604.13/x
  3. Step 3: Cross multiply
    1,221,986.77x = 1,832,980.02 × 380,604.13
  4. Step 4: Simplify right side
    1,221,986.77x = 697,639,765,819.48
  5. Step 5: Solve for x
    x = 697,639,765,819.48/1,221,986.77
  6. Step 6: Final answer
    x = 570,906.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.