Home / 2,784,378.40-4,168,273.20-1,661,869.60

Finding the Fourth Proportional to 2,784,378.40, 4,168,273.20 and 1,661,869.60

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Solution

The fourth proportional to 2,784,378.40, 4,168,273.20 and 1,661,869.60 is: 2,487,853.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784,378.40 : 4,168,273.20 = 1,661,869.60 : x
  2. Step 2: Convert to fraction form
    2,784,378.40/4,168,273.20 = 1,661,869.60/x
  3. Step 3: Cross multiply
    2,784,378.40x = 4,168,273.20 × 1,661,869.60
  4. Step 4: Simplify right side
    2,784,378.40x = 6,927,126,515,574.72
  5. Step 5: Solve for x
    x = 6,927,126,515,574.72/2,784,378.40
  6. Step 6: Final answer
    x = 2,487,853.85

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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.