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Finding the Fourth Proportional to 585.44, 875.57 and 520.89

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Solution

The fourth proportional to 585.44, 875.57 and 520.89 is: 779.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.44 : 875.57 = 520.89 : x
  2. Step 2: Convert to fraction form
    585.44/875.57 = 520.89/x
  3. Step 3: Cross multiply
    585.44x = 875.57 × 520.89
  4. Step 4: Simplify right side
    585.44x = 456,075.89
  5. Step 5: Solve for x
    x = 456,075.89/585.44
  6. Step 6: Final answer
    x = 779.04

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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.