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Finding the Fourth Proportional to 545,434.82, 752,722.26 and 303,702.08

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Solution

The fourth proportional to 545,434.82, 752,722.26 and 303,702.08 is: 419,121.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,434.82 : 752,722.26 = 303,702.08 : x
  2. Step 2: Convert to fraction form
    545,434.82/752,722.26 = 303,702.08/x
  3. Step 3: Cross multiply
    545,434.82x = 752,722.26 × 303,702.08
  4. Step 4: Simplify right side
    545,434.82x = 228,603,316,024.30
  5. Step 5: Solve for x
    x = 228,603,316,024.30/545,434.82
  6. Step 6: Final answer
    x = 419,121.24

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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.