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Finding the Fourth Proportional to 1,978,052.80, 2,966,787.60 and 558,252.40

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Solution

The fourth proportional to 1,978,052.80, 2,966,787.60 and 558,252.40 is: 837,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,052.80 : 2,966,787.60 = 558,252.40 : x
  2. Step 2: Convert to fraction form
    1,978,052.80/2,966,787.60 = 558,252.40/x
  3. Step 3: Cross multiply
    1,978,052.80x = 2,966,787.60 × 558,252.40
  4. Step 4: Simplify right side
    1,978,052.80x = 1,656,216,297,990.24
  5. Step 5: Solve for x
    x = 1,656,216,297,990.24/1,978,052.80
  6. Step 6: Final answer
    x = 837,296.30

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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.