Home / 925,016.04-1,387,762.86-285,305.40

Finding the Fourth Proportional to 925,016.04, 1,387,762.86 and 285,305.40

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Solution

The fourth proportional to 925,016.04, 1,387,762.86 and 285,305.40 is: 428,031.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,016.04 : 1,387,762.86 = 285,305.40 : x
  2. Step 2: Convert to fraction form
    925,016.04/1,387,762.86 = 285,305.40/x
  3. Step 3: Cross multiply
    925,016.04x = 1,387,762.86 × 285,305.40
  4. Step 4: Simplify right side
    925,016.04x = 395,936,237,877.44
  5. Step 5: Solve for x
    x = 395,936,237,877.44/925,016.04
  6. Step 6: Final answer
    x = 428,031.75

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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.