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Finding the Fourth Proportional to 927,482, 1,390,817.88 and 328,244

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Solution

The fourth proportional to 927,482, 1,390,817.88 and 328,244 is: 492,222.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,482 : 1,390,817.88 = 328,244 : x
  2. Step 2: Convert to fraction form
    927,482/1,390,817.88 = 328,244/x
  3. Step 3: Cross multiply
    927,482x = 1,390,817.88 × 328,244
  4. Step 4: Simplify right side
    927,482x = 456,527,624,202.72
  5. Step 5: Solve for x
    x = 456,527,624,202.72/927,482
  6. Step 6: Final answer
    x = 492,222.62

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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.