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Finding the Fourth Proportional to 978,029.20, 1,467,043.80 and 942,599.80

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Solution

The fourth proportional to 978,029.20, 1,467,043.80 and 942,599.80 is: 1,413,899.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,029.20 : 1,467,043.80 = 942,599.80 : x
  2. Step 2: Convert to fraction form
    978,029.20/1,467,043.80 = 942,599.80/x
  3. Step 3: Cross multiply
    978,029.20x = 1,467,043.80 × 942,599.80
  4. Step 4: Simplify right side
    978,029.20x = 1,382,835,192,471.24
  5. Step 5: Solve for x
    x = 1,382,835,192,471.24/978,029.20
  6. Step 6: Final answer
    x = 1,413,899.70

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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.