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Finding the Fourth Proportional to 676,471.84, 933,538 and 408,148

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Solution

The fourth proportional to 676,471.84, 933,538 and 408,148 is: 563,248.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,471.84 : 933,538 = 408,148 : x
  2. Step 2: Convert to fraction form
    676,471.84/933,538 = 408,148/x
  3. Step 3: Cross multiply
    676,471.84x = 933,538 × 408,148
  4. Step 4: Simplify right side
    676,471.84x = 381,021,667,624
  5. Step 5: Solve for x
    x = 381,021,667,624/676,471.84
  6. Step 6: Final answer
    x = 563,248.38

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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.