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Finding the Fourth Proportional to 707,446.13, 976,245.08 and 385,157.39

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Solution

The fourth proportional to 707,446.13, 976,245.08 and 385,157.39 is: 531,500.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,446.13 : 976,245.08 = 385,157.39 : x
  2. Step 2: Convert to fraction form
    707,446.13/976,245.08 = 385,157.39/x
  3. Step 3: Cross multiply
    707,446.13x = 976,245.08 × 385,157.39
  4. Step 4: Simplify right side
    707,446.13x = 376,008,000,206.13
  5. Step 5: Solve for x
    x = 376,008,000,206.13/707,446.13
  6. Step 6: Final answer
    x = 531,500.54

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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.