Home / 1,387,886.20-2,081,829.30-441,352.60

Finding the Fourth Proportional to 1,387,886.20, 2,081,829.30 and 441,352.60

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Solution

The fourth proportional to 1,387,886.20, 2,081,829.30 and 441,352.60 is: 662,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,886.20 : 2,081,829.30 = 441,352.60 : x
  2. Step 2: Convert to fraction form
    1,387,886.20/2,081,829.30 = 441,352.60/x
  3. Step 3: Cross multiply
    1,387,886.20x = 2,081,829.30 × 441,352.60
  4. Step 4: Simplify right side
    1,387,886.20x = 918,820,774,311.18
  5. Step 5: Solve for x
    x = 918,820,774,311.18/1,387,886.20
  6. Step 6: Final answer
    x = 662,028.90

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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.