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Finding the Fourth Proportional to 521,287.79, 781,996.07 and 184,258.94

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Solution

The fourth proportional to 521,287.79, 781,996.07 and 184,258.94 is: 276,411.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,287.79 : 781,996.07 = 184,258.94 : x
  2. Step 2: Convert to fraction form
    521,287.79/781,996.07 = 184,258.94/x
  3. Step 3: Cross multiply
    521,287.79x = 781,996.07 × 184,258.94
  4. Step 4: Simplify right side
    521,287.79x = 144,089,762,111.09
  5. Step 5: Solve for x
    x = 144,089,762,111.09/521,287.79
  6. Step 6: Final answer
    x = 276,411.16

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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.