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Finding the Fourth Proportional to 660,612.56, 911,709.32 and 370,273.44

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Solution

The fourth proportional to 660,612.56, 911,709.32 and 370,273.44 is: 511,013.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,612.56 : 911,709.32 = 370,273.44 : x
  2. Step 2: Convert to fraction form
    660,612.56/911,709.32 = 370,273.44/x
  3. Step 3: Cross multiply
    660,612.56x = 911,709.32 × 370,273.44
  4. Step 4: Simplify right side
    660,612.56x = 337,581,747,764.00
  5. Step 5: Solve for x
    x = 337,581,747,764.00/660,612.56
  6. Step 6: Final answer
    x = 511,013.22

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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.