Home / 1,035.48-1,553.31-480.18

Finding the Fourth Proportional to 1,035.48, 1,553.31 and 480.18

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Solution

The fourth proportional to 1,035.48, 1,553.31 and 480.18 is: 720.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035.48 : 1,553.31 = 480.18 : x
  2. Step 2: Convert to fraction form
    1,035.48/1,553.31 = 480.18/x
  3. Step 3: Cross multiply
    1,035.48x = 1,553.31 × 480.18
  4. Step 4: Simplify right side
    1,035.48x = 745,868.40
  5. Step 5: Solve for x
    x = 745,868.40/1,035.48
  6. Step 6: Final answer
    x = 720.31

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1.5x scale

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.