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Finding the Fourth Proportional to 545,655.11, 753,026.90 and 303,937.34

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Solution

The fourth proportional to 545,655.11, 753,026.90 and 303,937.34 is: 419,446.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,655.11 : 753,026.90 = 303,937.34 : x
  2. Step 2: Convert to fraction form
    545,655.11/753,026.90 = 303,937.34/x
  3. Step 3: Cross multiply
    545,655.11x = 753,026.90 × 303,937.34
  4. Step 4: Simplify right side
    545,655.11x = 228,872,987,649.63
  5. Step 5: Solve for x
    x = 228,872,987,649.63/545,655.11
  6. Step 6: Final answer
    x = 419,446.25

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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.