Home / 1,030.03-1,543.61-480.85

Finding the Fourth Proportional to 1,030.03, 1,543.61 and 480.85

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Solution

The fourth proportional to 1,030.03, 1,543.61 and 480.85 is: 720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030.03 : 1,543.61 = 480.85 : x
  2. Step 2: Convert to fraction form
    1,030.03/1,543.61 = 480.85/x
  3. Step 3: Cross multiply
    1,030.03x = 1,543.61 × 480.85
  4. Step 4: Simplify right side
    1,030.03x = 742,242.46
  5. Step 5: Solve for x
    x = 742,242.46/1,030.03
  6. Step 6: Final answer
    x = 720.60

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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.