Home / 1,691,909.64-2,531,934.18-1,212,665.85

Finding the Fourth Proportional to 1,691,909.64, 2,531,934.18 and 1,212,665.85

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Solution

The fourth proportional to 1,691,909.64, 2,531,934.18 and 1,212,665.85 is: 1,814,748.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691,909.64 : 2,531,934.18 = 1,212,665.85 : x
  2. Step 2: Convert to fraction form
    1,691,909.64/2,531,934.18 = 1,212,665.85/x
  3. Step 3: Cross multiply
    1,691,909.64x = 2,531,934.18 × 1,212,665.85
  4. Step 4: Simplify right side
    1,691,909.64x = 3,070,390,114,533.75
  5. Step 5: Solve for x
    x = 3,070,390,114,533.75/1,691,909.64
  6. Step 6: Final answer
    x = 1,814,748.28

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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.