Home / 1,020.07-1,529.30-370.45

Finding the Fourth Proportional to 1,020.07, 1,529.30 and 370.45

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Solution

The fourth proportional to 1,020.07, 1,529.30 and 370.45 is: 555.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020.07 : 1,529.30 = 370.45 : x
  2. Step 2: Convert to fraction form
    1,020.07/1,529.30 = 370.45/x
  3. Step 3: Cross multiply
    1,020.07x = 1,529.30 × 370.45
  4. Step 4: Simplify right side
    1,020.07x = 566,527.33
  5. Step 5: Solve for x
    x = 566,527.33/1,020.07
  6. Step 6: Final answer
    x = 555.38

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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.