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Finding the Fourth Proportional to 570.60, 854.64 and 479.46

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Solution

The fourth proportional to 570.60, 854.64 and 479.46 is: 718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.60 : 854.64 = 479.46 : x
  2. Step 2: Convert to fraction form
    570.60/854.64 = 479.46/x
  3. Step 3: Cross multiply
    570.60x = 854.64 × 479.46
  4. Step 4: Simplify right side
    570.60x = 409,765.69
  5. Step 5: Solve for x
    x = 409,765.69/570.60
  6. Step 6: Final answer
    x = 718.13

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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.