Home / 1,191,862.52-1,787,848.86-393,213.86

Finding the Fourth Proportional to 1,191,862.52, 1,787,848.86 and 393,213.86

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Solution

The fourth proportional to 1,191,862.52, 1,787,848.86 and 393,213.86 is: 589,838.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,862.52 : 1,787,848.86 = 393,213.86 : x
  2. Step 2: Convert to fraction form
    1,191,862.52/1,787,848.86 = 393,213.86/x
  3. Step 3: Cross multiply
    1,191,862.52x = 1,787,848.86 × 393,213.86
  4. Step 4: Simplify right side
    1,191,862.52x = 703,006,948,365.11
  5. Step 5: Solve for x
    x = 703,006,948,365.11/1,191,862.52
  6. Step 6: Final answer
    x = 589,838.96

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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.