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Finding the Fourth Proportional to 478,993.92, 660,996.48 and 264,143.04

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Solution

The fourth proportional to 478,993.92, 660,996.48 and 264,143.04 is: 364,509.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,993.92 : 660,996.48 = 264,143.04 : x
  2. Step 2: Convert to fraction form
    478,993.92/660,996.48 = 264,143.04/x
  3. Step 3: Cross multiply
    478,993.92x = 660,996.48 × 264,143.04
  4. Step 4: Simplify right side
    478,993.92x = 174,597,619,656.50
  5. Step 5: Solve for x
    x = 174,597,619,656.50/478,993.92
  6. Step 6: Final answer
    x = 364,509.05

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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.