Home / 1,638,891.60-2,458,337.40-456,939.60

Finding the Fourth Proportional to 1,638,891.60, 2,458,337.40 and 456,939.60

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Solution

The fourth proportional to 1,638,891.60, 2,458,337.40 and 456,939.60 is: 685,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,891.60 : 2,458,337.40 = 456,939.60 : x
  2. Step 2: Convert to fraction form
    1,638,891.60/2,458,337.40 = 456,939.60/x
  3. Step 3: Cross multiply
    1,638,891.60x = 2,458,337.40 × 456,939.60
  4. Step 4: Simplify right side
    1,638,891.60x = 1,123,311,708,221.04
  5. Step 5: Solve for x
    x = 1,123,311,708,221.04/1,638,891.60
  6. Step 6: Final answer
    x = 685,409.40

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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.