Home / 1,907,765.20-2,861,647.80-487,932.40

Finding the Fourth Proportional to 1,907,765.20, 2,861,647.80 and 487,932.40

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Solution

The fourth proportional to 1,907,765.20, 2,861,647.80 and 487,932.40 is: 731,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907,765.20 : 2,861,647.80 = 487,932.40 : x
  2. Step 2: Convert to fraction form
    1,907,765.20/2,861,647.80 = 487,932.40/x
  3. Step 3: Cross multiply
    1,907,765.20x = 2,861,647.80 × 487,932.40
  4. Step 4: Simplify right side
    1,907,765.20x = 1,396,290,679,008.72
  5. Step 5: Solve for x
    x = 1,396,290,679,008.72/1,907,765.20
  6. Step 6: Final answer
    x = 731,898.60

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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.