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Finding the Fourth Proportional to 563,396.46, 777,561.57 and 321,624.42

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Solution

The fourth proportional to 563,396.46, 777,561.57 and 321,624.42 is: 443,884.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,396.46 : 777,561.57 = 321,624.42 : x
  2. Step 2: Convert to fraction form
    563,396.46/777,561.57 = 321,624.42/x
  3. Step 3: Cross multiply
    563,396.46x = 777,561.57 × 321,624.42
  4. Step 4: Simplify right side
    563,396.46x = 250,082,788,965.54
  5. Step 5: Solve for x
    x = 250,082,788,965.54/563,396.46
  6. Step 6: Final answer
    x = 443,884.20

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Double scale
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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.