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Finding the Fourth Proportional to 660,612.43, 911,709.14 and 370,273.32

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Solution

The fourth proportional to 660,612.43, 911,709.14 and 370,273.32 is: 511,013.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,612.43 : 911,709.14 = 370,273.32 : x
  2. Step 2: Convert to fraction form
    660,612.43/911,709.14 = 370,273.32/x
  3. Step 3: Cross multiply
    660,612.43x = 911,709.14 × 370,273.32
  4. Step 4: Simplify right side
    660,612.43x = 337,581,566,509.28
  5. Step 5: Solve for x
    x = 337,581,566,509.28/660,612.43
  6. Step 6: Final answer
    x = 511,013.04

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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.