Home / 1,528,504.80-2,105,690.96-1,068,759.12

Finding the Fourth Proportional to 1,528,504.80, 2,105,690.96 and 1,068,759.12

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Solution

The fourth proportional to 1,528,504.80, 2,105,690.96 and 1,068,759.12 is: 1,472,338.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,504.80 : 2,105,690.96 = 1,068,759.12 : x
  2. Step 2: Convert to fraction form
    1,528,504.80/2,105,690.96 = 1,068,759.12/x
  3. Step 3: Cross multiply
    1,528,504.80x = 2,105,690.96 × 1,068,759.12
  4. Step 4: Simplify right side
    1,528,504.80x = 2,250,476,417,401.56
  5. Step 5: Solve for x
    x = 2,250,476,417,401.56/1,528,504.80
  6. Step 6: Final answer
    x = 1,472,338.47

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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.