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Finding the Fourth Proportional to 514,490.80, 771,736.20 and 504,649.30

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Solution

The fourth proportional to 514,490.80, 771,736.20 and 504,649.30 is: 756,973.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,490.80 : 771,736.20 = 504,649.30 : x
  2. Step 2: Convert to fraction form
    514,490.80/771,736.20 = 504,649.30/x
  3. Step 3: Cross multiply
    514,490.80x = 771,736.20 × 504,649.30
  4. Step 4: Simplify right side
    514,490.80x = 389,456,133,114.66
  5. Step 5: Solve for x
    x = 389,456,133,114.66/514,490.80
  6. Step 6: Final answer
    x = 756,973.95

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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.