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Finding the Fourth Proportional to 469,887.79, 648,445.79 and 255,027.87

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Solution

The fourth proportional to 469,887.79, 648,445.79 and 255,027.87 is: 351,938.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,887.79 : 648,445.79 = 255,027.87 : x
  2. Step 2: Convert to fraction form
    469,887.79/648,445.79 = 255,027.87/x
  3. Step 3: Cross multiply
    469,887.79x = 648,445.79 × 255,027.87
  4. Step 4: Simplify right side
    469,887.79x = 165,371,748,634.17
  5. Step 5: Solve for x
    x = 165,371,748,634.17/469,887.79
  6. Step 6: Final answer
    x = 351,938.81

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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.