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Finding the Fourth Proportional to 480,714.20, 720,852.60 and 256,016.96

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Solution

The fourth proportional to 480,714.20, 720,852.60 and 256,016.96 is: 383,908.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,714.20 : 720,852.60 = 256,016.96 : x
  2. Step 2: Convert to fraction form
    480,714.20/720,852.60 = 256,016.96/x
  3. Step 3: Cross multiply
    480,714.20x = 720,852.60 × 256,016.96
  4. Step 4: Simplify right side
    480,714.20x = 184,550,491,260.10
  5. Step 5: Solve for x
    x = 184,550,491,260.10/480,714.20
  6. Step 6: Final answer
    x = 383,908.97

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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.