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Finding the Fourth Proportional to 584.24, 875.64 and 389.07

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Solution

The fourth proportional to 584.24, 875.64 and 389.07 is: 583.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.24 : 875.64 = 389.07 : x
  2. Step 2: Convert to fraction form
    584.24/875.64 = 389.07/x
  3. Step 3: Cross multiply
    584.24x = 875.64 × 389.07
  4. Step 4: Simplify right side
    584.24x = 340,678.93
  5. Step 5: Solve for x
    x = 340,678.93/584.24
  6. Step 6: Final answer
    x = 583.11

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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.