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Finding the Fourth Proportional to 475.04, 708.50 and 407

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Solution

The fourth proportional to 475.04, 708.50 and 407 is: 607.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.04 : 708.50 = 407 : x
  2. Step 2: Convert to fraction form
    475.04/708.50 = 407/x
  3. Step 3: Cross multiply
    475.04x = 708.50 × 407
  4. Step 4: Simplify right side
    475.04x = 288,359.50
  5. Step 5: Solve for x
    x = 288,359.50/475.04
  6. Step 6: Final answer
    x = 607.02

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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.