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Finding the Fourth Proportional to 565.04, 847.56 and 457.58

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Solution

The fourth proportional to 565.04, 847.56 and 457.58 is: 686.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.04 : 847.56 = 457.58 : x
  2. Step 2: Convert to fraction form
    565.04/847.56 = 457.58/x
  3. Step 3: Cross multiply
    565.04x = 847.56 × 457.58
  4. Step 4: Simplify right side
    565.04x = 387,826.50
  5. Step 5: Solve for x
    x = 387,826.50/565.04
  6. Step 6: Final answer
    x = 686.37

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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.