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Finding the Fourth Proportional to 582.24, 873.80 and 407.76

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Solution

The fourth proportional to 582.24, 873.80 and 407.76 is: 611.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.24 : 873.80 = 407.76 : x
  2. Step 2: Convert to fraction form
    582.24/873.80 = 407.76/x
  3. Step 3: Cross multiply
    582.24x = 873.80 × 407.76
  4. Step 4: Simplify right side
    582.24x = 356,298.65
  5. Step 5: Solve for x
    x = 356,298.65/582.24
  6. Step 6: Final answer
    x = 611.94

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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.