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Finding the Fourth Proportional to 442,804.66, 611,052.80 and 261,574.80

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Solution

The fourth proportional to 442,804.66, 611,052.80 and 261,574.80 is: 360,962.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,804.66 : 611,052.80 = 261,574.80 : x
  2. Step 2: Convert to fraction form
    442,804.66/611,052.80 = 261,574.80/x
  3. Step 3: Cross multiply
    442,804.66x = 611,052.80 × 261,574.80
  4. Step 4: Simplify right side
    442,804.66x = 159,836,013,949.44
  5. Step 5: Solve for x
    x = 159,836,013,949.44/442,804.66
  6. Step 6: Final answer
    x = 360,962.81

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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.