Home / 971,439.35-1,457,481.60-431,620.52

Finding the Fourth Proportional to 971,439.35, 1,457,481.60 and 431,620.52

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Solution

The fourth proportional to 971,439.35, 1,457,481.60 and 431,620.52 is: 647,574.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,439.35 : 1,457,481.60 = 431,620.52 : x
  2. Step 2: Convert to fraction form
    971,439.35/1,457,481.60 = 431,620.52/x
  3. Step 3: Cross multiply
    971,439.35x = 1,457,481.60 × 431,620.52
  4. Step 4: Simplify right side
    971,439.35x = 629,078,958,795.02
  5. Step 5: Solve for x
    x = 629,078,958,795.02/971,439.35
  6. Step 6: Final answer
    x = 647,574.10

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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.