Home / 673,638.53-1,010,651.43-389,532.65

Finding the Fourth Proportional to 673,638.53, 1,010,651.43 and 389,532.65

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Solution

The fourth proportional to 673,638.53, 1,010,651.43 and 389,532.65 is: 584,410.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,638.53 : 1,010,651.43 = 389,532.65 : x
  2. Step 2: Convert to fraction form
    673,638.53/1,010,651.43 = 389,532.65/x
  3. Step 3: Cross multiply
    673,638.53x = 1,010,651.43 × 389,532.65
  4. Step 4: Simplify right side
    673,638.53x = 393,681,723,970.56
  5. Step 5: Solve for x
    x = 393,681,723,970.56/673,638.53
  6. Step 6: Final answer
    x = 584,410.94

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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.