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Finding the Fourth Proportional to 545,187.51, 817,948.68 and 279,134.82

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Solution

The fourth proportional to 545,187.51, 817,948.68 and 279,134.82 is: 418,787.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,187.51 : 817,948.68 = 279,134.82 : x
  2. Step 2: Convert to fraction form
    545,187.51/817,948.68 = 279,134.82/x
  3. Step 3: Cross multiply
    545,187.51x = 817,948.68 × 279,134.82
  4. Step 4: Simplify right side
    545,187.51x = 228,317,953,471.29
  5. Step 5: Solve for x
    x = 228,317,953,471.29/545,187.51
  6. Step 6: Final answer
    x = 418,787.94

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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.