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Finding the Fourth Proportional to 545,618.66, 752,977.11 and 303,901.30

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Solution

The fourth proportional to 545,618.66, 752,977.11 and 303,901.30 is: 419,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,618.66 : 752,977.11 = 303,901.30 : x
  2. Step 2: Convert to fraction form
    545,618.66/752,977.11 = 303,901.30/x
  3. Step 3: Cross multiply
    545,618.66x = 752,977.11 × 303,901.30
  4. Step 4: Simplify right side
    545,618.66x = 228,830,718,834.36
  5. Step 5: Solve for x
    x = 228,830,718,834.36/545,618.66
  6. Step 6: Final answer
    x = 419,396.80

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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.