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Finding the Fourth Proportional to 545,690.57, 752,953.05 and 303,967.13

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Solution

The fourth proportional to 545,690.57, 752,953.05 and 303,967.13 is: 419,418.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,690.57 : 752,953.05 = 303,967.13 : x
  2. Step 2: Convert to fraction form
    545,690.57/752,953.05 = 303,967.13/x
  3. Step 3: Cross multiply
    545,690.57x = 752,953.05 × 303,967.13
  4. Step 4: Simplify right side
    545,690.57x = 228,872,973,868.48
  5. Step 5: Solve for x
    x = 228,872,973,868.48/545,690.57
  6. Step 6: Final answer
    x = 419,418.97

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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.