Home / 1,857,906.30-2,786,190.70-643,152.95

Finding the Fourth Proportional to 1,857,906.30, 2,786,190.70 and 643,152.95

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Solution

The fourth proportional to 1,857,906.30, 2,786,190.70 and 643,152.95 is: 964,497.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857,906.30 : 2,786,190.70 = 643,152.95 : x
  2. Step 2: Convert to fraction form
    1,857,906.30/2,786,190.70 = 643,152.95/x
  3. Step 3: Cross multiply
    1,857,906.30x = 2,786,190.70 × 643,152.95
  4. Step 4: Simplify right side
    1,857,906.30x = 1,791,946,767,967.57
  5. Step 5: Solve for x
    x = 1,791,946,767,967.57/1,857,906.30
  6. Step 6: Final answer
    x = 964,497.92

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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.