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Finding the Fourth Proportional to 612,300.84, 918,562.31 and 252,271.76

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Solution

The fourth proportional to 612,300.84, 918,562.31 and 252,271.76 is: 378,453.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,300.84 : 918,562.31 = 252,271.76 : x
  2. Step 2: Convert to fraction form
    612,300.84/918,562.31 = 252,271.76/x
  3. Step 3: Cross multiply
    612,300.84x = 918,562.31 × 252,271.76
  4. Step 4: Simplify right side
    612,300.84x = 231,727,331,648.41
  5. Step 5: Solve for x
    x = 231,727,331,648.41/612,300.84
  6. Step 6: Final answer
    x = 378,453.39

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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.