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Finding the Fourth Proportional to 499,299.62, 689,045.60 and 303,068.34

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Solution

The fourth proportional to 499,299.62, 689,045.60 and 303,068.34 is: 418,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,299.62 : 689,045.60 = 303,068.34 : x
  2. Step 2: Convert to fraction form
    499,299.62/689,045.60 = 303,068.34/x
  3. Step 3: Cross multiply
    499,299.62x = 689,045.60 × 303,068.34
  4. Step 4: Simplify right side
    499,299.62x = 208,827,906,933.98
  5. Step 5: Solve for x
    x = 208,827,906,933.98/499,299.62
  6. Step 6: Final answer
    x = 418,241.67

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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.