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Finding the Fourth Proportional to 1,050.33, 1,575.83 and 434.33

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Solution

The fourth proportional to 1,050.33, 1,575.83 and 434.33 is: 651.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.33 : 1,575.83 = 434.33 : x
  2. Step 2: Convert to fraction form
    1,050.33/1,575.83 = 434.33/x
  3. Step 3: Cross multiply
    1,050.33x = 1,575.83 × 434.33
  4. Step 4: Simplify right side
    1,050.33x = 684,430.24
  5. Step 5: Solve for x
    x = 684,430.24/1,050.33
  6. Step 6: Final answer
    x = 651.63

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Double scale
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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.