Home / 985,644.80-1,478,467.20-943,654.40

Finding the Fourth Proportional to 985,644.80, 1,478,467.20 and 943,654.40

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Solution

The fourth proportional to 985,644.80, 1,478,467.20 and 943,654.40 is: 1,415,481.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,644.80 : 1,478,467.20 = 943,654.40 : x
  2. Step 2: Convert to fraction form
    985,644.80/1,478,467.20 = 943,654.40/x
  3. Step 3: Cross multiply
    985,644.80x = 1,478,467.20 × 943,654.40
  4. Step 4: Simplify right side
    985,644.80x = 1,395,162,078,535.68
  5. Step 5: Solve for x
    x = 1,395,162,078,535.68/985,644.80
  6. Step 6: Final answer
    x = 1,415,481.60

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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.