Home / 1,328,534.53-1,993,118.01-429,976.27

Finding the Fourth Proportional to 1,328,534.53, 1,993,118.01 and 429,976.27

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Solution

The fourth proportional to 1,328,534.53, 1,993,118.01 and 429,976.27 is: 645,066.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,534.53 : 1,993,118.01 = 429,976.27 : x
  2. Step 2: Convert to fraction form
    1,328,534.53/1,993,118.01 = 429,976.27/x
  3. Step 3: Cross multiply
    1,328,534.53x = 1,993,118.01 × 429,976.27
  4. Step 4: Simplify right side
    1,328,534.53x = 856,993,447,609.62
  5. Step 5: Solve for x
    x = 856,993,447,609.62/1,328,534.53
  6. Step 6: Final answer
    x = 645,066.75

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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.