Home / 1,033.90-1,551.23-417.77

Finding the Fourth Proportional to 1,033.90, 1,551.23 and 417.77

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Solution

The fourth proportional to 1,033.90, 1,551.23 and 417.77 is: 626.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.90 : 1,551.23 = 417.77 : x
  2. Step 2: Convert to fraction form
    1,033.90/1,551.23 = 417.77/x
  3. Step 3: Cross multiply
    1,033.90x = 1,551.23 × 417.77
  4. Step 4: Simplify right side
    1,033.90x = 648,057.36
  5. Step 5: Solve for x
    x = 648,057.36/1,033.90
  6. Step 6: Final answer
    x = 626.81

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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.