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Finding the Fourth Proportional to 660,181.30, 911,052.93 and 373,756.66

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Solution

The fourth proportional to 660,181.30, 911,052.93 and 373,756.66 is: 515,785.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,181.30 : 911,052.93 = 373,756.66 : x
  2. Step 2: Convert to fraction form
    660,181.30/911,052.93 = 373,756.66/x
  3. Step 3: Cross multiply
    660,181.30x = 911,052.93 × 373,756.66
  4. Step 4: Simplify right side
    660,181.30x = 340,512,100,200.01
  5. Step 5: Solve for x
    x = 340,512,100,200.01/660,181.30
  6. Step 6: Final answer
    x = 515,785.74

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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.