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Finding the Fourth Proportional to 560,558.36, 773,224.83 and 399,465.15

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Solution

The fourth proportional to 560,558.36, 773,224.83 and 399,465.15 is: 551,015.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,558.36 : 773,224.83 = 399,465.15 : x
  2. Step 2: Convert to fraction form
    560,558.36/773,224.83 = 399,465.15/x
  3. Step 3: Cross multiply
    560,558.36x = 773,224.83 × 399,465.15
  4. Step 4: Simplify right side
    560,558.36x = 308,876,372,699.68
  5. Step 5: Solve for x
    x = 308,876,372,699.68/560,558.36
  6. Step 6: Final answer
    x = 551,015.55

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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.