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Finding the Fourth Proportional to 480,654.48, 721,415.07 and 256,201.86

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Solution

The fourth proportional to 480,654.48, 721,415.07 and 256,201.86 is: 384,533.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,654.48 : 721,415.07 = 256,201.86 : x
  2. Step 2: Convert to fraction form
    480,654.48/721,415.07 = 256,201.86/x
  3. Step 3: Cross multiply
    480,654.48x = 721,415.07 × 256,201.86
  4. Step 4: Simplify right side
    480,654.48x = 184,827,882,766.03
  5. Step 5: Solve for x
    x = 184,827,882,766.03/480,654.48
  6. Step 6: Final answer
    x = 384,533.78

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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.