Home / 679,448.34-1,019,295.09-279,871.02

Finding the Fourth Proportional to 679,448.34, 1,019,295.09 and 279,871.02

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Solution

The fourth proportional to 679,448.34, 1,019,295.09 and 279,871.02 is: 419,857.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,448.34 : 1,019,295.09 = 279,871.02 : x
  2. Step 2: Convert to fraction form
    679,448.34/1,019,295.09 = 279,871.02/x
  3. Step 3: Cross multiply
    679,448.34x = 1,019,295.09 × 279,871.02
  4. Step 4: Simplify right side
    679,448.34x = 285,271,156,519.29
  5. Step 5: Solve for x
    x = 285,271,156,519.29/679,448.34
  6. Step 6: Final answer
    x = 419,857.02

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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.