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Finding the Fourth Proportional to 607.80, 917.13 and 532.20

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Solution

The fourth proportional to 607.80, 917.13 and 532.20 is: 803.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.80 : 917.13 = 532.20 : x
  2. Step 2: Convert to fraction form
    607.80/917.13 = 532.20/x
  3. Step 3: Cross multiply
    607.80x = 917.13 × 532.20
  4. Step 4: Simplify right side
    607.80x = 488,096.59
  5. Step 5: Solve for x
    x = 488,096.59/607.80
  6. Step 6: Final answer
    x = 803.05

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.