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Finding the Fourth Proportional to 660,179.80, 911,050.86 and 373,755.16

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Solution

The fourth proportional to 660,179.80, 911,050.86 and 373,755.16 is: 515,783.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,179.80 : 911,050.86 = 373,755.16 : x
  2. Step 2: Convert to fraction form
    660,179.80/911,050.86 = 373,755.16/x
  3. Step 3: Cross multiply
    660,179.80x = 911,050.86 × 373,755.16
  4. Step 4: Simplify right side
    660,179.80x = 340,509,959,947.44
  5. Step 5: Solve for x
    x = 340,509,959,947.44/660,179.80
  6. Step 6: Final answer
    x = 515,783.67

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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.