Home / 1,907,818.20-2,861,727.30-487,985.40

Finding the Fourth Proportional to 1,907,818.20, 2,861,727.30 and 487,985.40

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Solution

The fourth proportional to 1,907,818.20, 2,861,727.30 and 487,985.40 is: 731,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907,818.20 : 2,861,727.30 = 487,985.40 : x
  2. Step 2: Convert to fraction form
    1,907,818.20/2,861,727.30 = 487,985.40/x
  3. Step 3: Cross multiply
    1,907,818.20x = 2,861,727.30 × 487,985.40
  4. Step 4: Simplify right side
    1,907,818.20x = 1,396,481,141,181.42
  5. Step 5: Solve for x
    x = 1,396,481,141,181.42/1,907,818.20
  6. Step 6: Final answer
    x = 731,978.10

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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.