Home / 916,257.28-1,374,515.52-285,234.88

Finding the Fourth Proportional to 916,257.28, 1,374,515.52 and 285,234.88

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Solution

The fourth proportional to 916,257.28, 1,374,515.52 and 285,234.88 is: 427,892.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,257.28 : 1,374,515.52 = 285,234.88 : x
  2. Step 2: Convert to fraction form
    916,257.28/1,374,515.52 = 285,234.88/x
  3. Step 3: Cross multiply
    916,257.28x = 1,374,515.52 × 285,234.88
  4. Step 4: Simplify right side
    916,257.28x = 392,059,769,405.34
  5. Step 5: Solve for x
    x = 392,059,769,405.34/916,257.28
  6. Step 6: Final answer
    x = 427,892.67

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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.