Home / 1,485,013.31-2,049,319.20-805,949.81

Finding the Fourth Proportional to 1,485,013.31, 2,049,319.20 and 805,949.81

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Solution

The fourth proportional to 1,485,013.31, 2,049,319.20 and 805,949.81 is: 1,112,211.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,013.31 : 2,049,319.20 = 805,949.81 : x
  2. Step 2: Convert to fraction form
    1,485,013.31/2,049,319.20 = 805,949.81/x
  3. Step 3: Cross multiply
    1,485,013.31x = 2,049,319.20 × 805,949.81
  4. Step 4: Simplify right side
    1,485,013.31x = 1,651,648,409,622.76
  5. Step 5: Solve for x
    x = 1,651,648,409,622.76/1,485,013.31
  6. Step 6: Final answer
    x = 1,112,211.19

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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.