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Finding the Fourth Proportional to 900.03, 1,241.70 and 545.82

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Solution

The fourth proportional to 900.03, 1,241.70 and 545.82 is: 753.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    900.03 : 1,241.70 = 545.82 : x
  2. Step 2: Convert to fraction form
    900.03/1,241.70 = 545.82/x
  3. Step 3: Cross multiply
    900.03x = 1,241.70 × 545.82
  4. Step 4: Simplify right side
    900.03x = 677,744.69
  5. Step 5: Solve for x
    x = 677,744.69/900.03
  6. Step 6: Final answer
    x = 753.02

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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.