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Finding the Fourth Proportional to 672.30, 1,004.51 and 592.10

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Solution

The fourth proportional to 672.30, 1,004.51 and 592.10 is: 884.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.30 : 1,004.51 = 592.10 : x
  2. Step 2: Convert to fraction form
    672.30/1,004.51 = 592.10/x
  3. Step 3: Cross multiply
    672.30x = 1,004.51 × 592.10
  4. Step 4: Simplify right side
    672.30x = 594,770.37
  5. Step 5: Solve for x
    x = 594,770.37/672.30
  6. Step 6: Final answer
    x = 884.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.