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Finding the Fourth Proportional to 545,093.39, 815,640.39 and 454,913.30

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Solution

The fourth proportional to 545,093.39, 815,640.39 and 454,913.30 is: 680,701.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,093.39 : 815,640.39 = 454,913.30 : x
  2. Step 2: Convert to fraction form
    545,093.39/815,640.39 = 454,913.30/x
  3. Step 3: Cross multiply
    545,093.39x = 815,640.39 × 454,913.30
  4. Step 4: Simplify right side
    545,093.39x = 371,045,657,349.99
  5. Step 5: Solve for x
    x = 371,045,657,349.99/545,093.39
  6. Step 6: Final answer
    x = 680,701.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.