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Finding the Fourth Proportional to 1,060.39, 1,590.20 and 366.85

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Solution

The fourth proportional to 1,060.39, 1,590.20 and 366.85 is: 550.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.39 : 1,590.20 = 366.85 : x
  2. Step 2: Convert to fraction form
    1,060.39/1,590.20 = 366.85/x
  3. Step 3: Cross multiply
    1,060.39x = 1,590.20 × 366.85
  4. Step 4: Simplify right side
    1,060.39x = 583,364.87
  5. Step 5: Solve for x
    x = 583,364.87/1,060.39
  6. Step 6: Final answer
    x = 550.14

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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.