Home / 892,439.12-1,231,133.64-590,885.84

Finding the Fourth Proportional to 892,439.12, 1,231,133.64 and 590,885.84

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Solution

The fourth proportional to 892,439.12, 1,231,133.64 and 590,885.84 is: 815,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,439.12 : 1,231,133.64 = 590,885.84 : x
  2. Step 2: Convert to fraction form
    892,439.12/1,231,133.64 = 590,885.84/x
  3. Step 3: Cross multiply
    892,439.12x = 1,231,133.64 × 590,885.84
  4. Step 4: Simplify right side
    892,439.12x = 727,459,435,023.66
  5. Step 5: Solve for x
    x = 727,459,435,023.66/892,439.12
  6. Step 6: Final answer
    x = 815,136.20

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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.