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Finding the Fourth Proportional to 563,361.48, 777,362.76 and 321,628.68

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Solution

The fourth proportional to 563,361.48, 777,362.76 and 321,628.68 is: 443,804.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,361.48 : 777,362.76 = 321,628.68 : x
  2. Step 2: Convert to fraction form
    563,361.48/777,362.76 = 321,628.68/x
  3. Step 3: Cross multiply
    563,361.48x = 777,362.76 × 321,628.68
  4. Step 4: Simplify right side
    563,361.48x = 250,022,158,379.96
  5. Step 5: Solve for x
    x = 250,022,158,379.96/563,361.48
  6. Step 6: Final answer
    x = 443,804.14

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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.