Home / 1,430,438.72-2,145,767.96-405,751.44

Finding the Fourth Proportional to 1,430,438.72, 2,145,767.96 and 405,751.44

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Solution

The fourth proportional to 1,430,438.72, 2,145,767.96 and 405,751.44 is: 608,658.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,438.72 : 2,145,767.96 = 405,751.44 : x
  2. Step 2: Convert to fraction form
    1,430,438.72/2,145,767.96 = 405,751.44/x
  3. Step 3: Cross multiply
    1,430,438.72x = 2,145,767.96 × 405,751.44
  4. Step 4: Simplify right side
    1,430,438.72x = 870,648,439,675.86
  5. Step 5: Solve for x
    x = 870,648,439,675.86/1,430,438.72
  6. Step 6: Final answer
    x = 608,658.33

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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.