Home / 1,219,488.80-1,829,233.20-378,125.60

Finding the Fourth Proportional to 1,219,488.80, 1,829,233.20 and 378,125.60

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Solution

The fourth proportional to 1,219,488.80, 1,829,233.20 and 378,125.60 is: 567,188.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,488.80 : 1,829,233.20 = 378,125.60 : x
  2. Step 2: Convert to fraction form
    1,219,488.80/1,829,233.20 = 378,125.60/x
  3. Step 3: Cross multiply
    1,219,488.80x = 1,829,233.20 × 378,125.60
  4. Step 4: Simplify right side
    1,219,488.80x = 691,679,901,289.92
  5. Step 5: Solve for x
    x = 691,679,901,289.92/1,219,488.80
  6. Step 6: Final answer
    x = 567,188.40

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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.