Home / 1,191,862.43-1,787,848.72-393,213.77

Finding the Fourth Proportional to 1,191,862.43, 1,787,848.72 and 393,213.77

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Solution

The fourth proportional to 1,191,862.43, 1,787,848.72 and 393,213.77 is: 589,838.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,862.43 : 1,787,848.72 = 393,213.77 : x
  2. Step 2: Convert to fraction form
    1,191,862.43/1,787,848.72 = 393,213.77/x
  3. Step 3: Cross multiply
    1,191,862.43x = 1,787,848.72 × 393,213.77
  4. Step 4: Simplify right side
    1,191,862.43x = 703,006,725,458.60
  5. Step 5: Solve for x
    x = 703,006,725,458.60/1,191,862.43
  6. Step 6: Final answer
    x = 589,838.82

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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.