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Finding the Fourth Proportional to 563,361.73, 777,363.11 and 321,628.93

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Solution

The fourth proportional to 563,361.73, 777,363.11 and 321,628.93 is: 443,804.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,361.73 : 777,363.11 = 321,628.93 : x
  2. Step 2: Convert to fraction form
    563,361.73/777,363.11 = 321,628.93/x
  3. Step 3: Cross multiply
    563,361.73x = 777,363.11 × 321,628.93
  4. Step 4: Simplify right side
    563,361.73x = 250,022,463,682.63
  5. Step 5: Solve for x
    x = 250,022,463,682.63/563,361.73
  6. Step 6: Final answer
    x = 443,804.49

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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.