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Finding the Fourth Proportional to 543,221.61, 749,640.30 and 301,506.27

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Solution

The fourth proportional to 543,221.61, 749,640.30 and 301,506.27 is: 416,075.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,221.61 : 749,640.30 = 301,506.27 : x
  2. Step 2: Convert to fraction form
    543,221.61/749,640.30 = 301,506.27/x
  3. Step 3: Cross multiply
    543,221.61x = 749,640.30 × 301,506.27
  4. Step 4: Simplify right side
    543,221.61x = 226,021,250,694.68
  5. Step 5: Solve for x
    x = 226,021,250,694.68/543,221.61
  6. Step 6: Final answer
    x = 416,075.59

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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.