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Finding the Fourth Proportional to 479,957.76, 662,382.72 and 265,121.28

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Solution

The fourth proportional to 479,957.76, 662,382.72 and 265,121.28 is: 365,890.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,957.76 : 662,382.72 = 265,121.28 : x
  2. Step 2: Convert to fraction form
    479,957.76/662,382.72 = 265,121.28/x
  3. Step 3: Cross multiply
    479,957.76x = 662,382.72 × 265,121.28
  4. Step 4: Simplify right side
    479,957.76x = 175,611,754,576.28
  5. Step 5: Solve for x
    x = 175,611,754,576.28/479,957.76
  6. Step 6: Final answer
    x = 365,890.02

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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.