Home / 939,492.52-1,409,234.96-340,313.44

Finding the Fourth Proportional to 939,492.52, 1,409,234.96 and 340,313.44

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Solution

The fourth proportional to 939,492.52, 1,409,234.96 and 340,313.44 is: 510,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,492.52 : 1,409,234.96 = 340,313.44 : x
  2. Step 2: Convert to fraction form
    939,492.52/1,409,234.96 = 340,313.44/x
  3. Step 3: Cross multiply
    939,492.52x = 1,409,234.96 × 340,313.44
  4. Step 4: Simplify right side
    939,492.52x = 479,581,597,005.86
  5. Step 5: Solve for x
    x = 479,581,597,005.86/939,492.52
  6. Step 6: Final answer
    x = 510,468.78

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Double scale
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Similar ratio
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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.