Home / 1,561,614.93-2,154,988.13-863,921.50

Finding the Fourth Proportional to 1,561,614.93, 2,154,988.13 and 863,921.50

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Solution

The fourth proportional to 1,561,614.93, 2,154,988.13 and 863,921.50 is: 1,192,189.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,614.93 : 2,154,988.13 = 863,921.50 : x
  2. Step 2: Convert to fraction form
    1,561,614.93/2,154,988.13 = 863,921.50/x
  3. Step 3: Cross multiply
    1,561,614.93x = 2,154,988.13 × 863,921.50
  4. Step 4: Simplify right side
    1,561,614.93x = 1,861,740,568,044.72
  5. Step 5: Solve for x
    x = 1,861,740,568,044.72/1,561,614.93
  6. Step 6: Final answer
    x = 1,192,189.27

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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.