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Finding the Fourth Proportional to 545,957.49, 819,519.44 and 309,761.49

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Solution

The fourth proportional to 545,957.49, 819,519.44 and 309,761.49 is: 464,973.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,957.49 : 819,519.44 = 309,761.49 : x
  2. Step 2: Convert to fraction form
    545,957.49/819,519.44 = 309,761.49/x
  3. Step 3: Cross multiply
    545,957.49x = 819,519.44 × 309,761.49
  4. Step 4: Simplify right side
    545,957.49x = 253,855,561,269.56
  5. Step 5: Solve for x
    x = 253,855,561,269.56/545,957.49
  6. Step 6: Final answer
    x = 464,973.13

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1.5x scale

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.