Home / 1,328,601.90-1,993,194.45-429,890.70

Finding the Fourth Proportional to 1,328,601.90, 1,993,194.45 and 429,890.70

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Solution

The fourth proportional to 1,328,601.90, 1,993,194.45 and 429,890.70 is: 644,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,601.90 : 1,993,194.45 = 429,890.70 : x
  2. Step 2: Convert to fraction form
    1,328,601.90/1,993,194.45 = 429,890.70/x
  3. Step 3: Cross multiply
    1,328,601.90x = 1,993,194.45 × 429,890.70
  4. Step 4: Simplify right side
    1,328,601.90x = 856,855,757,346.62
  5. Step 5: Solve for x
    x = 856,855,757,346.62/1,328,601.90
  6. Step 6: Final answer
    x = 644,930.40

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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.