Home / 1,251,771.45-1,727,445.06-678,811.47

Finding the Fourth Proportional to 1,251,771.45, 1,727,445.06 and 678,811.47

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Solution

The fourth proportional to 1,251,771.45, 1,727,445.06 and 678,811.47 is: 936,760.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,771.45 : 1,727,445.06 = 678,811.47 : x
  2. Step 2: Convert to fraction form
    1,251,771.45/1,727,445.06 = 678,811.47/x
  3. Step 3: Cross multiply
    1,251,771.45x = 1,727,445.06 × 678,811.47
  4. Step 4: Simplify right side
    1,251,771.45x = 1,172,609,520,522.84
  5. Step 5: Solve for x
    x = 1,172,609,520,522.84/1,251,771.45
  6. Step 6: Final answer
    x = 936,760.08

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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.