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Finding the Fourth Proportional to 612,444.44, 918,877.16 and 275,721.17

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Solution

The fourth proportional to 612,444.44, 918,877.16 and 275,721.17 is: 413,676.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,444.44 : 918,877.16 = 275,721.17 : x
  2. Step 2: Convert to fraction form
    612,444.44/918,877.16 = 275,721.17/x
  3. Step 3: Cross multiply
    612,444.44x = 918,877.16 × 275,721.17
  4. Step 4: Simplify right side
    612,444.44x = 253,353,881,736.39
  5. Step 5: Solve for x
    x = 253,353,881,736.39/612,444.44
  6. Step 6: Final answer
    x = 413,676.51

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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.