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Finding the Fourth Proportional to 582.80, 803.90 and 435.58

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Solution

The fourth proportional to 582.80, 803.90 and 435.58 is: 600.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.80 : 803.90 = 435.58 : x
  2. Step 2: Convert to fraction form
    582.80/803.90 = 435.58/x
  3. Step 3: Cross multiply
    582.80x = 803.90 × 435.58
  4. Step 4: Simplify right side
    582.80x = 350,162.76
  5. Step 5: Solve for x
    x = 350,162.76/582.80
  6. Step 6: Final answer
    x = 600.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.