Home / 857,775.48-1,286,666.22-218,079.28

Finding the Fourth Proportional to 857,775.48, 1,286,666.22 and 218,079.28

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Solution

The fourth proportional to 857,775.48, 1,286,666.22 and 218,079.28 is: 327,119.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,775.48 : 1,286,666.22 = 218,079.28 : x
  2. Step 2: Convert to fraction form
    857,775.48/1,286,666.22 = 218,079.28/x
  3. Step 3: Cross multiply
    857,775.48x = 1,286,666.22 × 218,079.28
  4. Step 4: Simplify right side
    857,775.48x = 280,595,242,857.92
  5. Step 5: Solve for x
    x = 280,595,242,857.92/857,775.48
  6. Step 6: Final answer
    x = 327,119.68

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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.