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Finding the Fourth Proportional to 521,296.90, 782,009.76 and 184,268.02

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Solution

The fourth proportional to 521,296.90, 782,009.76 and 184,268.02 is: 276,424.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,296.90 : 782,009.76 = 184,268.02 : x
  2. Step 2: Convert to fraction form
    521,296.90/782,009.76 = 184,268.02/x
  3. Step 3: Cross multiply
    521,296.90x = 782,009.76 × 184,268.02
  4. Step 4: Simplify right side
    521,296.90x = 144,099,390,095.88
  5. Step 5: Solve for x
    x = 144,099,390,095.88/521,296.90
  6. Step 6: Final answer
    x = 276,424.80

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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.