Home / 818,774.40-1,228,334.40-257,865.60

Finding the Fourth Proportional to 818,774.40, 1,228,334.40 and 257,865.60

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Solution

The fourth proportional to 818,774.40, 1,228,334.40 and 257,865.60 is: 386,852.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,774.40 : 1,228,334.40 = 257,865.60 : x
  2. Step 2: Convert to fraction form
    818,774.40/1,228,334.40 = 257,865.60/x
  3. Step 3: Cross multiply
    818,774.40x = 1,228,334.40 × 257,865.60
  4. Step 4: Simplify right side
    818,774.40x = 316,745,187,056.64
  5. Step 5: Solve for x
    x = 316,745,187,056.64/818,774.40
  6. Step 6: Final answer
    x = 386,852.82

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1.5x scale

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.