Home / 1,003,438.46-1,384,166.04-640,453.26

Finding the Fourth Proportional to 1,003,438.46, 1,384,166.04 and 640,453.26

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Solution

The fourth proportional to 1,003,438.46, 1,384,166.04 and 640,453.26 is: 883,455.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,438.46 : 1,384,166.04 = 640,453.26 : x
  2. Step 2: Convert to fraction form
    1,003,438.46/1,384,166.04 = 640,453.26/x
  3. Step 3: Cross multiply
    1,003,438.46x = 1,384,166.04 × 640,453.26
  4. Step 4: Simplify right side
    1,003,438.46x = 886,493,652,699.29
  5. Step 5: Solve for x
    x = 886,493,652,699.29/1,003,438.46
  6. Step 6: Final answer
    x = 883,455.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.