Home / 1,218,970.77-1,682,130.29-675,074.20

Finding the Fourth Proportional to 1,218,970.77, 1,682,130.29 and 675,074.20

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Solution

The fourth proportional to 1,218,970.77, 1,682,130.29 and 675,074.20 is: 931,575.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,970.77 : 1,682,130.29 = 675,074.20 : x
  2. Step 2: Convert to fraction form
    1,218,970.77/1,682,130.29 = 675,074.20/x
  3. Step 3: Cross multiply
    1,218,970.77x = 1,682,130.29 × 675,074.20
  4. Step 4: Simplify right side
    1,218,970.77x = 1,135,562,752,236.82
  5. Step 5: Solve for x
    x = 1,135,562,752,236.82/1,218,970.77
  6. Step 6: Final answer
    x = 931,575.05

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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.