Home / 1,288,097.20-1,930,493.40-719,477.20

Finding the Fourth Proportional to 1,288,097.20, 1,930,493.40 and 719,477.20

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Solution

The fourth proportional to 1,288,097.20, 1,930,493.40 and 719,477.20 is: 1,078,292.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,097.20 : 1,930,493.40 = 719,477.20 : x
  2. Step 2: Convert to fraction form
    1,288,097.20/1,930,493.40 = 719,477.20/x
  3. Step 3: Cross multiply
    1,288,097.20x = 1,930,493.40 × 719,477.20
  4. Step 4: Simplify right side
    1,288,097.20x = 1,388,945,986,050.48
  5. Step 5: Solve for x
    x = 1,388,945,986,050.48/1,288,097.20
  6. Step 6: Final answer
    x = 1,078,292.84

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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.