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Finding the Fourth Proportional to 603.40, 903.30 and 567.80

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Solution

The fourth proportional to 603.40, 903.30 and 567.80 is: 850.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.40 : 903.30 = 567.80 : x
  2. Step 2: Convert to fraction form
    603.40/903.30 = 567.80/x
  3. Step 3: Cross multiply
    603.40x = 903.30 × 567.80
  4. Step 4: Simplify right side
    603.40x = 512,893.74
  5. Step 5: Solve for x
    x = 512,893.74/603.40
  6. Step 6: Final answer
    x = 850.01

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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.