Home / 1,139,780.08-1,580,089.49-1,079,107.84

Finding the Fourth Proportional to 1,139,780.08, 1,580,089.49 and 1,079,107.84

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Solution

The fourth proportional to 1,139,780.08, 1,580,089.49 and 1,079,107.84 is: 1,495,978.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,780.08 : 1,580,089.49 = 1,079,107.84 : x
  2. Step 2: Convert to fraction form
    1,139,780.08/1,580,089.49 = 1,079,107.84/x
  3. Step 3: Cross multiply
    1,139,780.08x = 1,580,089.49 × 1,079,107.84
  4. Step 4: Simplify right side
    1,139,780.08x = 1,705,086,956,560.60
  5. Step 5: Solve for x
    x = 1,705,086,956,560.60/1,139,780.08
  6. Step 6: Final answer
    x = 1,495,978.91

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.