Home / 1,869,112.20-2,803,668.30-687,006.60

Finding the Fourth Proportional to 1,869,112.20, 2,803,668.30 and 687,006.60

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Solution

The fourth proportional to 1,869,112.20, 2,803,668.30 and 687,006.60 is: 1,030,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869,112.20 : 2,803,668.30 = 687,006.60 : x
  2. Step 2: Convert to fraction form
    1,869,112.20/2,803,668.30 = 687,006.60/x
  3. Step 3: Cross multiply
    1,869,112.20x = 2,803,668.30 × 687,006.60
  4. Step 4: Simplify right side
    1,869,112.20x = 1,926,138,626,310.78
  5. Step 5: Solve for x
    x = 1,926,138,626,310.78/1,869,112.20
  6. Step 6: Final answer
    x = 1,030,509.90

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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.