Home / 1,188,239.20-1,782,766.80-346,914.40

Finding the Fourth Proportional to 1,188,239.20, 1,782,766.80 and 346,914.40

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Solution

The fourth proportional to 1,188,239.20, 1,782,766.80 and 346,914.40 is: 520,490.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,239.20 : 1,782,766.80 = 346,914.40 : x
  2. Step 2: Convert to fraction form
    1,188,239.20/1,782,766.80 = 346,914.40/x
  3. Step 3: Cross multiply
    1,188,239.20x = 1,782,766.80 × 346,914.40
  4. Step 4: Simplify right side
    1,188,239.20x = 618,467,474,761.92
  5. Step 5: Solve for x
    x = 618,467,474,761.92/1,188,239.20
  6. Step 6: Final answer
    x = 520,490.72

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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.