Home / 920,470.32-1,380,096.36-440,768.88

Finding the Fourth Proportional to 920,470.32, 1,380,096.36 and 440,768.88

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Solution

The fourth proportional to 920,470.32, 1,380,096.36 and 440,768.88 is: 660,861.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,470.32 : 1,380,096.36 = 440,768.88 : x
  2. Step 2: Convert to fraction form
    920,470.32/1,380,096.36 = 440,768.88/x
  3. Step 3: Cross multiply
    920,470.32x = 1,380,096.36 × 440,768.88
  4. Step 4: Simplify right side
    920,470.32x = 608,303,526,889.28
  5. Step 5: Solve for x
    x = 608,303,526,889.28/920,470.32
  6. Step 6: Final answer
    x = 660,861.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.