Home / 1,869,381.77-2,802,951.45-857,235.78

Finding the Fourth Proportional to 1,869,381.77, 2,802,951.45 and 857,235.78

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Solution

The fourth proportional to 1,869,381.77, 2,802,951.45 and 857,235.78 is: 1,285,339.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869,381.77 : 2,802,951.45 = 857,235.78 : x
  2. Step 2: Convert to fraction form
    1,869,381.77/2,802,951.45 = 857,235.78/x
  3. Step 3: Cross multiply
    1,869,381.77x = 2,802,951.45 × 857,235.78
  4. Step 4: Simplify right side
    1,869,381.77x = 2,402,790,272,542.88
  5. Step 5: Solve for x
    x = 2,402,790,272,542.88/1,869,381.77
  6. Step 6: Final answer
    x = 1,285,339.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.