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Finding the Fourth Proportional to 911,051.76, 1,366,437.48 and 303,850.74

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Solution

The fourth proportional to 911,051.76, 1,366,437.48 and 303,850.74 is: 455,729.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,051.76 : 1,366,437.48 = 303,850.74 : x
  2. Step 2: Convert to fraction form
    911,051.76/1,366,437.48 = 303,850.74/x
  3. Step 3: Cross multiply
    911,051.76x = 1,366,437.48 × 303,850.74
  4. Step 4: Simplify right side
    911,051.76x = 415,193,039,461.74
  5. Step 5: Solve for x
    x = 415,193,039,461.74/911,051.76
  6. Step 6: Final answer
    x = 455,729.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.