Home / 1,050.17-1,575.20-319.69

Finding the Fourth Proportional to 1,050.17, 1,575.20 and 319.69

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Solution

The fourth proportional to 1,050.17, 1,575.20 and 319.69 is: 479.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.17 : 1,575.20 = 319.69 : x
  2. Step 2: Convert to fraction form
    1,050.17/1,575.20 = 319.69/x
  3. Step 3: Cross multiply
    1,050.17x = 1,575.20 × 319.69
  4. Step 4: Simplify right side
    1,050.17x = 503,570.15
  5. Step 5: Solve for x
    x = 503,570.15/1,050.17
  6. Step 6: Final answer
    x = 479.51

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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.