Home / 1,030.80-1,545.09-414.26

Finding the Fourth Proportional to 1,030.80, 1,545.09 and 414.26

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Solution

The fourth proportional to 1,030.80, 1,545.09 and 414.26 is: 620.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030.80 : 1,545.09 = 414.26 : x
  2. Step 2: Convert to fraction form
    1,030.80/1,545.09 = 414.26/x
  3. Step 3: Cross multiply
    1,030.80x = 1,545.09 × 414.26
  4. Step 4: Simplify right side
    1,030.80x = 640,068.98
  5. Step 5: Solve for x
    x = 640,068.98/1,030.80
  6. Step 6: Final answer
    x = 620.94

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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.