Home / 1,228,297.07-1,842,617.82-429,396.90

Finding the Fourth Proportional to 1,228,297.07, 1,842,617.82 and 429,396.90

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Solution

The fourth proportional to 1,228,297.07, 1,842,617.82 and 429,396.90 is: 644,155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,297.07 : 1,842,617.82 = 429,396.90 : x
  2. Step 2: Convert to fraction form
    1,228,297.07/1,842,617.82 = 429,396.90/x
  3. Step 3: Cross multiply
    1,228,297.07x = 1,842,617.82 × 429,396.90
  4. Step 4: Simplify right side
    1,228,297.07x = 791,214,379,792.76
  5. Step 5: Solve for x
    x = 791,214,379,792.76/1,228,297.07
  6. Step 6: Final answer
    x = 644,155.56

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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.