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Finding the Fourth Proportional to 1,050.56, 1,575.84 and 617.12

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Solution

The fourth proportional to 1,050.56, 1,575.84 and 617.12 is: 925.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.56 : 1,575.84 = 617.12 : x
  2. Step 2: Convert to fraction form
    1,050.56/1,575.84 = 617.12/x
  3. Step 3: Cross multiply
    1,050.56x = 1,575.84 × 617.12
  4. Step 4: Simplify right side
    1,050.56x = 972,482.38
  5. Step 5: Solve for x
    x = 972,482.38/1,050.56
  6. Step 6: Final answer
    x = 925.68

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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.