Home / 886,780.60-1,330,365.30-287,639.80

Finding the Fourth Proportional to 886,780.60, 1,330,365.30 and 287,639.80

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Solution

The fourth proportional to 886,780.60, 1,330,365.30 and 287,639.80 is: 431,522.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,780.60 : 1,330,365.30 = 287,639.80 : x
  2. Step 2: Convert to fraction form
    886,780.60/1,330,365.30 = 287,639.80/x
  3. Step 3: Cross multiply
    886,780.60x = 1,330,365.30 × 287,639.80
  4. Step 4: Simplify right side
    886,780.60x = 382,666,008,818.94
  5. Step 5: Solve for x
    x = 382,666,008,818.94/886,780.60
  6. Step 6: Final answer
    x = 431,522.76

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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.