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Finding the Fourth Proportional to 603.59, 900.48 and 511.25

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Solution

The fourth proportional to 603.59, 900.48 and 511.25 is: 762.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.59 : 900.48 = 511.25 : x
  2. Step 2: Convert to fraction form
    603.59/900.48 = 511.25/x
  3. Step 3: Cross multiply
    603.59x = 900.48 × 511.25
  4. Step 4: Simplify right side
    603.59x = 460,367.81
  5. Step 5: Solve for x
    x = 460,367.81/603.59
  6. Step 6: Final answer
    x = 762.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.