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Finding the Fourth Proportional to 487,640.84, 731,510.46 and 183,958.79

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Solution

The fourth proportional to 487,640.84, 731,510.46 and 183,958.79 is: 275,956.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,640.84 : 731,510.46 = 183,958.79 : x
  2. Step 2: Convert to fraction form
    487,640.84/731,510.46 = 183,958.79/x
  3. Step 3: Cross multiply
    487,640.84x = 731,510.46 × 183,958.79
  4. Step 4: Simplify right side
    487,640.84x = 134,567,775,436.39
  5. Step 5: Solve for x
    x = 134,567,775,436.39/487,640.84
  6. Step 6: Final answer
    x = 275,956.74

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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.