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Finding the Fourth Proportional to 660,597.81, 911,569.32 and 366,255.39

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Solution

The fourth proportional to 660,597.81, 911,569.32 and 366,255.39 is: 505,401.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,597.81 : 911,569.32 = 366,255.39 : x
  2. Step 2: Convert to fraction form
    660,597.81/911,569.32 = 366,255.39/x
  3. Step 3: Cross multiply
    660,597.81x = 911,569.32 × 366,255.39
  4. Step 4: Simplify right side
    660,597.81x = 333,867,176,808.64
  5. Step 5: Solve for x
    x = 333,867,176,808.64/660,597.81
  6. Step 6: Final answer
    x = 505,401.58

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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.