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Finding the Fourth Proportional to 535,369.68, 739,677.96 and 455,639.76

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Solution

The fourth proportional to 535,369.68, 739,677.96 and 455,639.76 is: 629,521.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,369.68 : 739,677.96 = 455,639.76 : x
  2. Step 2: Convert to fraction form
    535,369.68/739,677.96 = 455,639.76/x
  3. Step 3: Cross multiply
    535,369.68x = 739,677.96 × 455,639.76
  4. Step 4: Simplify right side
    535,369.68x = 337,026,688,171.69
  5. Step 5: Solve for x
    x = 337,026,688,171.69/535,369.68
  6. Step 6: Final answer
    x = 629,521.43

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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.