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Finding the Fourth Proportional to 660,180.30, 911,051.55 and 373,755.66

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Solution

The fourth proportional to 660,180.30, 911,051.55 and 373,755.66 is: 515,784.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,180.30 : 911,051.55 = 373,755.66 : x
  2. Step 2: Convert to fraction form
    660,180.30/911,051.55 = 373,755.66/x
  3. Step 3: Cross multiply
    660,180.30x = 911,051.55 × 373,755.66
  4. Step 4: Simplify right side
    660,180.30x = 340,510,673,364.27
  5. Step 5: Solve for x
    x = 340,510,673,364.27/660,180.30
  6. Step 6: Final answer
    x = 515,784.36

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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.