Home / 686,000.88-1,029,352.32-326,577.96

Finding the Fourth Proportional to 686,000.88, 1,029,352.32 and 326,577.96

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Solution

The fourth proportional to 686,000.88, 1,029,352.32 and 326,577.96 is: 490,034.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,000.88 : 1,029,352.32 = 326,577.96 : x
  2. Step 2: Convert to fraction form
    686,000.88/1,029,352.32 = 326,577.96/x
  3. Step 3: Cross multiply
    686,000.88x = 1,029,352.32 × 326,577.96
  4. Step 4: Simplify right side
    686,000.88x = 336,163,780,786.87
  5. Step 5: Solve for x
    x = 336,163,780,786.87/686,000.88
  6. Step 6: Final answer
    x = 490,034.04

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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.