Home / 881,152.20-1,215,975.06-478,741.32

Finding the Fourth Proportional to 881,152.20, 1,215,975.06 and 478,741.32

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Solution

The fourth proportional to 881,152.20, 1,215,975.06 and 478,741.32 is: 660,654.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,152.20 : 1,215,975.06 = 478,741.32 : x
  2. Step 2: Convert to fraction form
    881,152.20/1,215,975.06 = 478,741.32/x
  3. Step 3: Cross multiply
    881,152.20x = 1,215,975.06 × 478,741.32
  4. Step 4: Simplify right side
    881,152.20x = 582,137,505,311.48
  5. Step 5: Solve for x
    x = 582,137,505,311.48/881,152.20
  6. Step 6: Final answer
    x = 660,654.88

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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.