Home / 1,251,771.80-1,727,445.54-678,811.82

Finding the Fourth Proportional to 1,251,771.80, 1,727,445.54 and 678,811.82

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Solution

The fourth proportional to 1,251,771.80, 1,727,445.54 and 678,811.82 is: 936,760.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,771.80 : 1,727,445.54 = 678,811.82 : x
  2. Step 2: Convert to fraction form
    1,251,771.80/1,727,445.54 = 678,811.82/x
  3. Step 3: Cross multiply
    1,251,771.80x = 1,727,445.54 × 678,811.82
  4. Step 4: Simplify right side
    1,251,771.80x = 1,172,610,438,927.00
  5. Step 5: Solve for x
    x = 1,172,610,438,927.00/1,251,771.80
  6. Step 6: Final answer
    x = 936,760.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.