Home / 1,383,520.30-1,908,531.93-1,125,685.56

Finding the Fourth Proportional to 1,383,520.30, 1,908,531.93 and 1,125,685.56

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Solution

The fourth proportional to 1,383,520.30, 1,908,531.93 and 1,125,685.56 is: 1,552,855.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,520.30 : 1,908,531.93 = 1,125,685.56 : x
  2. Step 2: Convert to fraction form
    1,383,520.30/1,908,531.93 = 1,125,685.56/x
  3. Step 3: Cross multiply
    1,383,520.30x = 1,908,531.93 × 1,125,685.56
  4. Step 4: Simplify right side
    1,383,520.30x = 2,148,406,824,857.27
  5. Step 5: Solve for x
    x = 2,148,406,824,857.27/1,383,520.30
  6. Step 6: Final answer
    x = 1,552,855.30

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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.