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Finding the Fourth Proportional to 545,434.85, 752,722.26 and 303,702.10

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Solution

The fourth proportional to 545,434.85, 752,722.26 and 303,702.10 is: 419,121.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,434.85 : 752,722.26 = 303,702.10 : x
  2. Step 2: Convert to fraction form
    545,434.85/752,722.26 = 303,702.10/x
  3. Step 3: Cross multiply
    545,434.85x = 752,722.26 × 303,702.10
  4. Step 4: Simplify right side
    545,434.85x = 228,603,331,078.75
  5. Step 5: Solve for x
    x = 228,603,331,078.75/545,434.85
  6. Step 6: Final answer
    x = 419,121.24

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1.5x scale

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.