Home / 881,991.20-1,217,046.48-499,941.92

Finding the Fourth Proportional to 881,991.20, 1,217,046.48 and 499,941.92

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Solution

The fourth proportional to 881,991.20, 1,217,046.48 and 499,941.92 is: 689,862.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,991.20 : 1,217,046.48 = 499,941.92 : x
  2. Step 2: Convert to fraction form
    881,991.20/1,217,046.48 = 499,941.92/x
  3. Step 3: Cross multiply
    881,991.20x = 1,217,046.48 × 499,941.92
  4. Step 4: Simplify right side
    881,991.20x = 608,452,553,940.44
  5. Step 5: Solve for x
    x = 608,452,553,940.44/881,991.20
  6. Step 6: Final answer
    x = 689,862.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.